diff --git a/404.html b/404.html
new file mode 100755
index 0000000..5e10d0d
--- /dev/null
+++ b/404.html
@@ -0,0 +1,210 @@
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
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+  <form id ="rtd-search-form" class="wy-form" action="/search.html" method="get">
+    <input type="text" name="q" placeholder="Search docs" />
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+</div>
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+      <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
+	<ul class="current">
+	  
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/">About</a>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/getting-started/">Getting Started</a>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/complementary-tools/">Complementary Tools</a>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <span class="caption-text">Type Definitions</span>
+    <ul class="subnav">
+                <li class="">
+                    
+    <a class="" href="/type-system/">Introduction</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/object-types/">Object Types</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/scalar-types/">Scalar Types</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/enum-types/">Enumeration Types</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/lists-and-nonnulls/">Lists and Non-Null</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/interfaces/">Interfaces</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/unions/">Unions</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/input-types/">Mutations and Input Types</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/directives/">Directives</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/schema/">Schema</a>
+                </li>
+                <li class="">
+                    
+    <a class="" href="/type-system/type-language/">Using Type Language</a>
+                </li>
+    </ul>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/executing-queries/">Executing Queries</a>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/data-fetching/">Fetching Data</a>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/error-handling/">Handling Errors</a>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/security/">Security</a>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/how-it-works/">How it works</a>
+	    </li>
+          
+            <li class="toctree-l1">
+		
+    <a class="" href="/reference/">Class Reference</a>
+	    </li>
+          
+        </ul>
+      </div>
+      &nbsp;
+    </nav>
+
+    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
+
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+      <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
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+        <a href="/">graphql-php</a>
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+        <div class="rst-content">
+          <div role="navigation" aria-label="breadcrumbs navigation">
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+    <li><a href="/">Docs</a> &raquo;</li>
+    
+    
+    <li class="wy-breadcrumbs-aside">
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+    </li>
+  </ul>
+  <hr/>
+</div>
+          <div role="main">
+            <div class="section">
+              
+
+  <h1 id="404-page-not-found">404</h1>
+
+  <p><strong>Page not found</strong></p>
+
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+            </div>
+          </div>
+          <footer>
+  
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+
+  <div role="contentinfo">
+    <!-- Copyright etc -->
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+</footer>
+      
+        </div>
+      </div>
+
+    </section>
+
+  </div>
+
+  <div class="rst-versions" role="note" style="cursor: pointer">
+    <span class="rst-current-version" data-toggle="rst-current-version">
+      
+      
+      
+    </span>
+</div>
+    <script>var base_url = '';</script>
+    <script src="/js/theme.js"></script>
+      <script src="/search/require.js"></script>
+      <script src="/search/search.js"></script>
+
+</body>
+</html>
diff --git a/complementary-tools/index.html b/complementary-tools/index.html
index c4314a5..1819898 100755
--- a/complementary-tools/index.html
+++ b/complementary-tools/index.html
@@ -190,7 +190,7 @@
                 <h1 id="integrations">Integrations</h1>
 <ul>
 <li><a href="https://github.com/ivome/graphql-relay-php">Integration with Relay</a></li>
-<li><a href="https://github.com/Folkloreatelier/laravel-graphql">Integration with Laravel 5</a> + <a href="https://github.com/nuwave/laravel-graphql-relay">Relay Helpers for Laravel</a></li>
+<li><a href="https://github.com/Folkloreatelier/laravel-graphql">Integration with Laravel 5</a> + <a href="https://github.com/nuwave/laravel-graphql-relay">Relay Helpers for Laravel</a> + <a href="https://github.com/nuwave/lighthouse">Nuwave Lighthouse</a></li>
 <li><a href="https://github.com/overblog/GraphQLBundle">Symfony Bundle</a> by Overblog</li>
 <li>Out of the box integration with any PSR-7 compatible framework (like <a href="http://slimframework.com">Slim</a> or <a href="http://zendframework.github.io/zend-expressive/">Zend Expressive</a>) via <a href="../executing-queries.md/#using-server">Standard Server</a></li>
 </ul>
@@ -232,12 +232,12 @@
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -251,7 +251,10 @@
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/css/theme_extra.css b/css/theme_extra.css
index e53d320..cf8123e 100755
--- a/css/theme_extra.css
+++ b/css/theme_extra.css
@@ -176,7 +176,7 @@ form .search-query {
 /*
  * Account for wide tables which go off the side.
  * Override borders to avoid wierdness on narrow tables.
- * 
+ *
  * https://github.com/mkdocs/mkdocs/issues/834
  * https://github.com/mkdocs/mkdocs/pull/1034
  */
@@ -191,3 +191,4 @@ td, th {
    border: 1px solid #e1e4e5 !important; /* csslint allow: important */
    border-collapse: collapse;
 }
+
diff --git a/data-fetching/index.html b/data-fetching/index.html
index f4176eb..63ec4fc 100755
--- a/data-fetching/index.html
+++ b/data-fetching/index.html
@@ -456,12 +456,12 @@ $promise-&gt;then(function(ExecutionResult $result) {
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -475,7 +475,10 @@ $promise-&gt;then(function(ExecutionResult $result) {
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/error-handling/index.html b/error-handling/index.html
index d4784fd..628c972 100755
--- a/error-handling/index.html
+++ b/error-handling/index.html
@@ -382,12 +382,12 @@ echo json_encode($body);
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -401,7 +401,10 @@ echo json_encode($body);
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/executing-queries/index.html b/executing-queries/index.html
index b36464a..d01409f 100755
--- a/executing-queries/index.html
+++ b/executing-queries/index.html
@@ -313,7 +313,7 @@ $psrResponse = new SomePsr7ResponseImplementation(json_encode($result));
 <p>PSR-7 is useful when you want to integrate the server into existing framework:</p>
 <ul>
 <li><a href="https://laravel.com/docs/5.1/requests#psr7-requests">PSR-7 for Laravel</a></li>
-<li><a href="https://symfony.com/doc/current/request/psr7.html">Symfony PSR-7 Bridge</a></li>
+<li><a href="https://symfony.com/doc/current/components/psr7.html">Symfony PSR-7 Bridge</a></li>
 <li><a href="https://www.slimframework.com/docs/concepts/value-objects.html">Slim</a></li>
 <li><a href="http://zendframework.github.io/zend-expressive/">Zend Expressive</a></li>
 </ul>
@@ -496,12 +496,12 @@ $server = new StandardServer([
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -515,7 +515,10 @@ $server = new StandardServer([
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/getting-started/index.html b/getting-started/index.html
index f1e8c3c..91ed0bb 100755
--- a/getting-started/index.html
+++ b/getting-started/index.html
@@ -325,12 +325,12 @@ It is quite close to real-world GraphQL hierarchies. Follow instructions and try
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -344,7 +344,10 @@ It is quite close to real-world GraphQL hierarchies. Follow instructions and try
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/how-it-works/index.html b/how-it-works/index.html
index d6d3709..3c60119 100755
--- a/how-it-works/index.html
+++ b/how-it-works/index.html
@@ -244,12 +244,12 @@ and only <strong>errors</strong> key will be presented.</p>
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -263,7 +263,10 @@ and only <strong>errors</strong> key will be presented.</p>
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/index.html b/index.html
index 74beec4..2c5a4a4 100755
--- a/index.html
+++ b/index.html
@@ -61,7 +61,7 @@
         
             <li><a class="toctree-l3" href="#current-status">Current Status</a></li>
         
-            <li><a class="toctree-l3" href="#github">Github</a></li>
+            <li><a class="toctree-l3" href="#github">GitHub</a></li>
         
         </ul>
     
@@ -232,7 +232,7 @@ existing PHP frameworks, add support for Relay, etc.</p>
 <a href="type-system/type-language/">Schema Language parser</a> and 
 <a href="reference/#graphqlutilsschemaprinter">Schema printer</a>.</p>
 <p>Ready for real-world usage. </p>
-<h2 id="github">Github</h2>
+<h2 id="github">GitHub</h2>
 <p>Project source code is <a href="https://github.com/webonyx/graphql-php">hosted on GitHub</a>.</p>
               
             </div>
@@ -256,12 +256,12 @@ existing PHP frameworks, add support for Relay, etc.</p>
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -273,12 +273,15 @@ existing PHP frameworks, add support for Relay, etc.</p>
       
     </span>
 </div>
+    <script>var base_url = '.';</script>
     <script src="./js/theme.js"></script>
+      <script src="./search/require.js"></script>
+      <script src="./search/search.js"></script>
 
 </body>
 </html>
 
 <!--
-MkDocs version : 0.16.3
-Build Date UTC : 2018-01-19 06:58:38
+MkDocs version : 0.17.3
+Build Date UTC : 2018-04-20 09:39:50
 -->
diff --git a/js/theme.js b/js/theme.js
index 99b146e..dda9975 100755
--- a/js/theme.js
+++ b/js/theme.js
@@ -11,6 +11,23 @@ $( document ).ready(function() {
       $("[data-toggle='rst-versions']").toggleClass("shift");
     });
 
+    // Keyboard navigation
+    document.addEventListener("keydown", function(e) {
+        if ($(e.target).is(':input')) return true;
+        var key = e.which || e.keyCode || window.event && window.event.keyCode;
+        var page;
+        switch (key) {
+            case 39:  // right arrow
+                page = $('[role="navigation"] a:contains(Next):first').prop('href');
+                break;
+            case 37:  // left arrow
+                page = $('[role="navigation"] a:contains(Previous):first').prop('href');
+                break;
+            default: break;
+        }
+        if (page) window.location.href = page;
+    });
+
     $(document).on('click', "[data-toggle='rst-current-version']", function() {
       $("[data-toggle='rst-versions']").toggleClass("shift-up");
     });
diff --git a/reference/index.html b/reference/index.html
index 63f069e..5ea2cdb 100755
--- a/reference/index.html
+++ b/reference/index.html
@@ -152,7 +152,7 @@
     <li class="toctree-l2"><a href="#graphqltypedefinitionresolveinfo">GraphQL\Type\Definition\ResolveInfo</a></li>
     
 
-    <li class="toctree-l2"><a href="#graphqltypedefinitiondirectivelocation">GraphQL\Type\Definition\DirectiveLocation</a></li>
+    <li class="toctree-l2"><a href="#graphqllanguagedirectivelocation">GraphQL\Language\DirectiveLocation</a></li>
     
 
     <li class="toctree-l2"><a href="#graphqltypeschemaconfig">GraphQL\Type\SchemaConfig</a></li>
@@ -417,7 +417,7 @@ static function float()
 
 <pre><code class="php">/**
  * @api
- * @param ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType|NonNull $wrappedType
+ * @param Type|ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType|NonNull $wrappedType
  * @return ListOfType
  */
 static function listOf($wrappedType)
@@ -471,6 +471,14 @@ static function isCompositeType($type)
 static function isAbstractType($type)
 </code></pre>
 
+<pre><code class="php">/**
+ * @api
+ * @param Type $type
+ * @return bool
+ */
+static function isType($type)
+</code></pre>
+
 <pre><code class="php">/**
  * @api
  * @param Type $type
@@ -611,26 +619,26 @@ public $variableValues;
 function getFieldSelection($depth = 0)
 </code></pre>
 
-<h1 id="graphqltypedefinitiondirectivelocation">GraphQL\Type\Definition\DirectiveLocation</h1>
+<h1 id="graphqllanguagedirectivelocation">GraphQL\Language\DirectiveLocation</h1>
 <p>List of available directive locations</p>
 <p><strong>Class Constants:</strong> </p>
-<pre><code class="php">const IFACE = &quot;INTERFACE&quot;;
-const SUBSCRIPTION = &quot;SUBSCRIPTION&quot;;
-const FRAGMENT_SPREAD = &quot;FRAGMENT_SPREAD&quot;;
-const QUERY = &quot;QUERY&quot;;
+<pre><code class="php">const QUERY = &quot;QUERY&quot;;
 const MUTATION = &quot;MUTATION&quot;;
+const SUBSCRIPTION = &quot;SUBSCRIPTION&quot;;
+const FIELD = &quot;FIELD&quot;;
 const FRAGMENT_DEFINITION = &quot;FRAGMENT_DEFINITION&quot;;
-const INPUT_OBJECT = &quot;INPUT_OBJECT&quot;;
+const FRAGMENT_SPREAD = &quot;FRAGMENT_SPREAD&quot;;
 const INLINE_FRAGMENT = &quot;INLINE_FRAGMENT&quot;;
-const UNION = &quot;UNION&quot;;
+const SCHEMA = &quot;SCHEMA&quot;;
 const SCALAR = &quot;SCALAR&quot;;
+const OBJECT = &quot;OBJECT&quot;;
 const FIELD_DEFINITION = &quot;FIELD_DEFINITION&quot;;
 const ARGUMENT_DEFINITION = &quot;ARGUMENT_DEFINITION&quot;;
+const IFACE = &quot;INTERFACE&quot;;
+const UNION = &quot;UNION&quot;;
 const ENUM = &quot;ENUM&quot;;
-const OBJECT = &quot;OBJECT&quot;;
 const ENUM_VALUE = &quot;ENUM_VALUE&quot;;
-const FIELD = &quot;FIELD&quot;;
-const SCHEMA = &quot;SCHEMA&quot;;
+const INPUT_OBJECT = &quot;INPUT_OBJECT&quot;;
 const INPUT_FIELD_DEFINITION = &quot;INPUT_FIELD_DEFINITION&quot;;
 </code></pre>
 
@@ -662,7 +670,7 @@ static function create(array $options = [])
  * @param ObjectType $query
  * @return SchemaConfig
  */
-function setQuery(GraphQL\Type\Definition\ObjectType $query)
+function setQuery($query)
 </code></pre>
 
 <pre><code class="php">/**
@@ -670,7 +678,7 @@ function setQuery(GraphQL\Type\Definition\ObjectType $query)
  * @param ObjectType $mutation
  * @return SchemaConfig
  */
-function setMutation(GraphQL\Type\Definition\ObjectType $mutation)
+function setMutation($mutation)
 </code></pre>
 
 <pre><code class="php">/**
@@ -678,7 +686,7 @@ function setMutation(GraphQL\Type\Definition\ObjectType $mutation)
  * @param ObjectType $subscription
  * @return SchemaConfig
  */
-function setSubscription(GraphQL\Type\Definition\ObjectType $subscription)
+function setSubscription($subscription)
 </code></pre>
 
 <pre><code class="php">/**
@@ -877,6 +885,17 @@ function getDirectives()
 function getDirective($name)
 </code></pre>
 
+<pre><code class="php">/**
+ * Validates schema.
+ *
+ * This operation requires full schema scan. Do not use in production environment.
+ *
+ * @api
+ * @return InvariantViolation[]|Error[]
+ */
+function validate()
+</code></pre>
+
 <pre><code class="php">/**
  * Validates schema.
  *
@@ -902,10 +921,25 @@ function assertValid()
  * in the source that they correspond to. This configuration flag
  * disables that behavior for performance or testing.)
  *
+ * experimentalFragmentVariables: boolean,
+ * (If enabled, the parser will understand and parse variable definitions
+ * contained in a fragment definition. They'll be represented in the
+ * `variableDefinitions` field of the FragmentDefinitionNode.
+ *
+ * The syntax is identical to normal, query-defined variables. For example:
+ *
+ *   fragment A($var: Boolean = false) on T  {
+ *     ...
+ *   }
+ *
+ * Note: this feature is experimental and may change or be removed in the
+ * future.)
+ *
  * @api
  * @param Source|string $source
  * @param array $options
  * @return DocumentNode
+ * @throws SyntaxError
  */
 static function parse($source, array $options = [])
 </code></pre>
@@ -1122,7 +1156,12 @@ const UNION_TYPE_DEFINITION = &quot;UnionTypeDefinition&quot;;
 const ENUM_TYPE_DEFINITION = &quot;EnumTypeDefinition&quot;;
 const ENUM_VALUE_DEFINITION = &quot;EnumValueDefinition&quot;;
 const INPUT_OBJECT_TYPE_DEFINITION = &quot;InputObjectTypeDefinition&quot;;
-const TYPE_EXTENSION_DEFINITION = &quot;TypeExtensionDefinition&quot;;
+const SCALAR_TYPE_EXTENSION = &quot;ScalarTypeExtension&quot;;
+const OBJECT_TYPE_EXTENSION = &quot;ObjectTypeExtension&quot;;
+const INTERFACE_TYPE_EXTENSION = &quot;InterfaceTypeExtension&quot;;
+const UNION_TYPE_EXTENSION = &quot;UnionTypeExtension&quot;;
+const ENUM_TYPE_EXTENSION = &quot;EnumTypeExtension&quot;;
+const INPUT_OBJECT_TYPE_EXTENSION = &quot;InputObjectTypeExtension&quot;;
 const DIRECTIVE_DEFINITION = &quot;DirectiveDefinition&quot;;
 </code></pre>
 
@@ -1473,8 +1512,7 @@ function getPath()
 <p>Warnings can be suppressed (individually or all) if required.
 Also it is possible to override warning handler (which is <strong>trigger_error()</strong> by default)</p>
 <p><strong>Class Constants:</strong> </p>
-<pre><code class="php">const WARNING_NAME = 1;
-const WARNING_ASSIGN = 2;
+<pre><code class="php">const WARNING_ASSIGN = 2;
 const WARNING_CONFIG = 4;
 const WARNING_FULL_SCHEMA_SCAN = 8;
 const WARNING_CONFIG_DEPRECATION = 16;
@@ -1504,7 +1542,7 @@ static function setWarningHandler(callable $warningHandler = null)
  * @api
  * @param bool|int $suppress
  */
-static function suppress($suppress = false)
+static function suppress($suppress = true)
 </code></pre>
 
 <pre><code class="php">/**
@@ -1518,7 +1556,7 @@ static function suppress($suppress = false)
  * @api
  * @param bool|int $enable
  */
-static function enable($enable = false)
+static function enable($enable = true)
 </code></pre>
 
 <h1 id="graphqlerrorclientaware">GraphQL\Error\ClientAware</h1>
@@ -1819,7 +1857,7 @@ function setPersistentQueryLoader(callable $persistentQueryLoader)
  * @param bool|int $set
  * @return $this
  */
-function setDebug($set = false)
+function setDebug($set = true)
 </code></pre>
 
 <pre><code class="php">/**
@@ -2034,13 +2072,19 @@ See <a href="../type-system/type-language/">section in docs</a> for details.</p>
  * Given that AST it constructs a GraphQL\Type\Schema. The resulting schema
  * has no resolve methods, so execution will use default resolvers.
  *
+ * Accepts options as a second argument:
+ *
+ *    - commentDescriptions:
+ *        Provide true to use preceding comments as the description.
+ *
+ *
  * @api
  * @param DocumentNode $ast
- * @param callable $typeConfigDecorator
+ * @param array $options
  * @return Schema
  * @throws Error
  */
-static function buildAST(GraphQL\Language\AST\DocumentNode $ast, callable $typeConfigDecorator = null)
+static function buildAST(GraphQL\Language\AST\DocumentNode $ast, array $options = [])
 </code></pre>
 
 <pre><code class="php">/**
@@ -2049,10 +2093,10 @@ static function buildAST(GraphQL\Language\AST\DocumentNode $ast, callable $typeC
  *
  * @api
  * @param DocumentNode|Source|string $source
- * @param callable $typeConfigDecorator
+ * @param array $options
  * @return Schema
  */
-static function build($source, callable $typeConfigDecorator = null)
+static function build($source, array $options = [])
 </code></pre>
 
 <h1 id="graphqlutilsast">GraphQL\Utils\AST</h1>
@@ -2151,6 +2195,31 @@ static function astFromValue($value, GraphQL\Type\Definition\InputType $type)
 static function valueFromAST($valueNode, GraphQL\Type\Definition\InputType $type, $variables = null)
 </code></pre>
 
+<pre><code class="php">/**
+ * Produces a PHP value given a GraphQL Value AST.
+ *
+ * Unlike `valueFromAST()`, no type is provided. The resulting JavaScript value
+ * will reflect the provided GraphQL value AST.
+ *
+ * | GraphQL Value        | PHP Value     |
+ * | -------------------- | ------------- |
+ * | Input Object         | Assoc Array   |
+ * | List                 | Array         |
+ * | Boolean              | Boolean       |
+ * | String               | String        |
+ * | Int / Float          | Int / Float   |
+ * | Enum                 | Mixed         |
+ * | Null                 | null          |
+ *
+ * @api
+ * @param Node $valueNode
+ * @param array|null $variables
+ * @return mixed
+ * @throws \Exception
+ */
+static function valueFromASTUntyped($valueNode, array $variables = null)
+</code></pre>
+
 <pre><code class="php">/**
  * Returns type definition for given AST Type node
  *
@@ -2158,7 +2227,7 @@ static function valueFromAST($valueNode, GraphQL\Type\Definition\InputType $type
  * @param Schema $schema
  * @param NamedTypeNode|ListTypeNode|NonNullTypeNode $inputTypeNode
  * @return Type
- * @throws InvariantViolation
+ * @throws \Exception
  */
 static function typeFromAST(GraphQL\Type\Schema $schema, $inputTypeNode)
 </code></pre>
@@ -2178,11 +2247,15 @@ static function getOperation(GraphQL\Language\AST\DocumentNode $document, $opera
 <p>Given an instance of Schema, prints it in GraphQL type language.</p>
 <p><strong>Class Methods:</strong> </p>
 <pre><code class="php">/**
+ * Accepts options as a second argument:
+ *
+ *    - commentDescriptions:
+ *        Provide true to use preceding comments as the description.
  * @api
  * @param Schema $schema
  * @return string
  */
-static function doPrint(GraphQL\Type\Schema $schema)
+static function doPrint(GraphQL\Type\Schema $schema, array $options = [])
 </code></pre>
 
 <pre><code class="php">/**
@@ -2190,7 +2263,7 @@ static function doPrint(GraphQL\Type\Schema $schema)
  * @param Schema $schema
  * @return string
  */
-static function printIntrosepctionSchema(GraphQL\Type\Schema $schema)
+static function printIntrosepctionSchema(GraphQL\Type\Schema $schema, array $options = [])
 </code></pre>
               
             </div>
@@ -2214,12 +2287,12 @@ static function printIntrosepctionSchema(GraphQL\Type\Schema $schema)
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -2231,7 +2304,10 @@ static function printIntrosepctionSchema(GraphQL\Type\Schema $schema)
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/search.html b/search.html
index 3f64b51..5c84ebd 100755
--- a/search.html
+++ b/search.html
@@ -17,10 +17,7 @@
   
   <script src="./js/jquery-2.1.1.min.js"></script>
   <script src="./js/modernizr-2.8.3.min.js"></script>
-  <script type="text/javascript" src="./js/highlight.pack.js"></script>
-  <script>var base_url = '.';</script>
-  <script data-main="./mkdocs/js/search.js" src="./mkdocs/js/require.js"></script>
-
+  <script type="text/javascript" src="./js/highlight.pack.js"></script> 
   
 </head>
 
@@ -196,12 +193,12 @@
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -211,7 +208,10 @@
       
     </span>
 </div>
+    <script>var base_url = '.';</script>
     <script src="./js/theme.js"></script>
+      <script src="./search/require.js"></script>
+      <script src="./search/search.js"></script>
 
 </body>
 </html>
diff --git a/mkdocs/js/lunr.min.js b/search/lunr.min.js
similarity index 100%
rename from mkdocs/js/lunr.min.js
rename to search/lunr.min.js
diff --git a/mkdocs/js/mustache.min.js b/search/mustache.min.js
similarity index 100%
rename from mkdocs/js/mustache.min.js
rename to search/mustache.min.js
diff --git a/mkdocs/js/require.js b/search/require.js
similarity index 100%
rename from mkdocs/js/require.js
rename to search/require.js
diff --git a/mkdocs/js/search-results-template.mustache b/search/search-results-template.mustache
similarity index 100%
rename from mkdocs/js/search-results-template.mustache
rename to search/search-results-template.mustache
diff --git a/mkdocs/js/search.js b/search/search.js
similarity index 92%
rename from mkdocs/js/search.js
rename to search/search.js
index d5c8661..2283930 100755
--- a/mkdocs/js/search.js
+++ b/search/search.js
@@ -1,8 +1,12 @@
+require.config({
+   baseUrl: base_url + "/search/"
+});
+
 require([
-    base_url + '/mkdocs/js/mustache.min.js',
-    base_url + '/mkdocs/js/lunr.min.js',
+    'mustache.min',
+    'lunr.min',
     'text!search-results-template.mustache',
-    'text!../search_index.json',
+    'text!search_index.json',
 ], function (Mustache, lunr, results_template, data) {
    "use strict";
 
@@ -83,6 +87,6 @@ require([
         search();
     }
 
-    search_input.addEventListener("keyup", search);
+    if (search_input){search_input.addEventListener("keyup", search);}
 
 });
diff --git a/mkdocs/search_index.json b/search/search_index.json
similarity index 78%
rename from mkdocs/search_index.json
rename to search/search_index.json
index 04a79cf..b2cfbc3 100755
--- a/mkdocs/search_index.json
+++ b/search/search_index.json
@@ -2,7 +2,7 @@
     "docs": [
         {
             "location": "/",
-            "text": "About GraphQL\n\n\nGraphQL is a modern way to build HTTP APIs consumed by the web and mobile clients.\nIt is intended to be a replacement for REST and SOAP APIs (even for \nexisting applications\n).\n\n\nGraphQL itself is a \nspecification\n designed by Facebook\nengineers. Various implementations of this specification were written \n\nin different languages and environments\n.\n\n\nGreat overview of GraphQL features and benefits is presented on \nthe official website\n. \nAll of them equally apply to this PHP implementation. \n\n\nAbout graphql-php\n\n\ngraphql-php\n is a feature-complete implementation of GraphQL specification in PHP (5.5+, 7.0+). \nIt was originally inspired by \nreference JavaScript implementation\n \npublished by Facebook.\n\n\nThis library is a thin wrapper around your existing data layer and business logic. \nIt doesn't dictate how these layers are implemented or which storage engines \nare used. Instead, it provides tools for creating rich API for your existing app.\n\n\nLibrary features include:\n\n\n\n\nPrimitives to express your app as a \nType System\n\n\nValidation and introspection of this Type System (for compatibility with tools like \nGraphiQL\n)\n\n\nParsing, validating and \nexecuting GraphQL queries\n against this Type System\n\n\nRich \nerror reporting\n, including query validation and execution errors\n\n\nOptional tools for \nparsing GraphQL Type language\n\n\nTools for \nbatching requests\n to backend storage\n\n\nAsync PHP platforms support\n via promises\n\n\nStandard HTTP server\n\n\n\n\nAlso, several \ncomplementary tools\n are available which provide integrations with \nexisting PHP frameworks, add support for Relay, etc.\n\n\nCurrent Status\n\n\nThe first version of this library (v0.1) was released on August 10th 2015.\n\n\nThe current version (v0.10) supports all features described by GraphQL specification \n(including April 2016 add-ons) as well as some experimental features like \n\nSchema Language parser\n and \n\nSchema printer\n.\n\n\nReady for real-world usage. \n\n\nGithub\n\n\nProject source code is \nhosted on GitHub\n.",
+            "text": "About GraphQL\n\n\nGraphQL is a modern way to build HTTP APIs consumed by the web and mobile clients.\nIt is intended to be a replacement for REST and SOAP APIs (even for \nexisting applications\n).\n\n\nGraphQL itself is a \nspecification\n designed by Facebook\nengineers. Various implementations of this specification were written \n\nin different languages and environments\n.\n\n\nGreat overview of GraphQL features and benefits is presented on \nthe official website\n. \nAll of them equally apply to this PHP implementation. \n\n\nAbout graphql-php\n\n\ngraphql-php\n is a feature-complete implementation of GraphQL specification in PHP (5.5+, 7.0+). \nIt was originally inspired by \nreference JavaScript implementation\n \npublished by Facebook.\n\n\nThis library is a thin wrapper around your existing data layer and business logic. \nIt doesn't dictate how these layers are implemented or which storage engines \nare used. Instead, it provides tools for creating rich API for your existing app.\n\n\nLibrary features include:\n\n\n\n\nPrimitives to express your app as a \nType System\n\n\nValidation and introspection of this Type System (for compatibility with tools like \nGraphiQL\n)\n\n\nParsing, validating and \nexecuting GraphQL queries\n against this Type System\n\n\nRich \nerror reporting\n, including query validation and execution errors\n\n\nOptional tools for \nparsing GraphQL Type language\n\n\nTools for \nbatching requests\n to backend storage\n\n\nAsync PHP platforms support\n via promises\n\n\nStandard HTTP server\n\n\n\n\nAlso, several \ncomplementary tools\n are available which provide integrations with \nexisting PHP frameworks, add support for Relay, etc.\n\n\nCurrent Status\n\n\nThe first version of this library (v0.1) was released on August 10th 2015.\n\n\nThe current version (v0.10) supports all features described by GraphQL specification \n(including April 2016 add-ons) as well as some experimental features like \n\nSchema Language parser\n and \n\nSchema printer\n.\n\n\nReady for real-world usage. \n\n\nGitHub\n\n\nProject source code is \nhosted on GitHub\n.",
             "title": "About"
         },
         {
@@ -23,7 +23,7 @@
         {
             "location": "/#github",
             "text": "Project source code is  hosted on GitHub .",
-            "title": "Github"
+            "title": "GitHub"
         },
         {
             "location": "/getting-started/",
@@ -62,12 +62,12 @@
         },
         {
             "location": "/complementary-tools/",
-            "text": "Integrations\n\n\n\n\nIntegration with Relay\n\n\nIntegration with Laravel 5\n + \nRelay Helpers for Laravel\n\n\nSymfony Bundle\n by Overblog\n\n\nOut of the box integration with any PSR-7 compatible framework (like \nSlim\n or \nZend Expressive\n) via \nStandard Server\n\n\n\n\nGraphQL PHP Tools\n\n\n\n\nDefine types with Doctrine ORM annotations (\nfor PHP7.1\n, for \nearlier PHP versions\n)\n\n\nDataLoader PHP\n - as a ready implementation for \ndeferred resolvers\n\n\nPSR 15 compliant middleware\n for the Standard Server (experimental)\n\n\nGraphQL Uploads\n for the Standard Server\n\n\n\n\nGeneral GraphQL Tools\n\n\n\n\nGraphiQL\n - An in-browser IDE for exploring GraphQL\n\n\nChromeiQL\n\n  or \nGraphiQL Feen\n -\n  GraphiQL as Google Chrome extension",
+            "text": "Integrations\n\n\n\n\nIntegration with Relay\n\n\nIntegration with Laravel 5\n + \nRelay Helpers for Laravel\n + \nNuwave Lighthouse\n\n\nSymfony Bundle\n by Overblog\n\n\nOut of the box integration with any PSR-7 compatible framework (like \nSlim\n or \nZend Expressive\n) via \nStandard Server\n\n\n\n\nGraphQL PHP Tools\n\n\n\n\nDefine types with Doctrine ORM annotations (\nfor PHP7.1\n, for \nearlier PHP versions\n)\n\n\nDataLoader PHP\n - as a ready implementation for \ndeferred resolvers\n\n\nPSR 15 compliant middleware\n for the Standard Server (experimental)\n\n\nGraphQL Uploads\n for the Standard Server\n\n\n\n\nGeneral GraphQL Tools\n\n\n\n\nGraphiQL\n - An in-browser IDE for exploring GraphQL\n\n\nChromeiQL\n\n  or \nGraphiQL Feen\n -\n  GraphiQL as Google Chrome extension",
             "title": "Complementary Tools"
         },
         {
             "location": "/complementary-tools/#integrations",
-            "text": "Integration with Relay  Integration with Laravel 5  +  Relay Helpers for Laravel  Symfony Bundle  by Overblog  Out of the box integration with any PSR-7 compatible framework (like  Slim  or  Zend Expressive ) via  Standard Server",
+            "text": "Integration with Relay  Integration with Laravel 5  +  Relay Helpers for Laravel  +  Nuwave Lighthouse  Symfony Bundle  by Overblog  Out of the box integration with any PSR-7 compatible framework (like  Slim  or  Zend Expressive ) via  Standard Server",
             "title": "Integrations"
         },
         {
@@ -282,7 +282,7 @@
         },
         {
             "location": "/type-system/directives/",
-            "text": "Built-in directives\n\n\nThe directive is a way for a client to give GraphQL server additional context and hints on how to execute\nthe query. The directive can be attached to a field or fragment and can affect the execution of the \nquery in any way the server desires.\n\n\nGraphQL specification includes two built-in directives:\n\n\n\n\n@include(if: Boolean)\n Only include this field or fragment in the result if the argument is \ntrue\n \n\n\n@skip(if: Boolean)\n Skip this field or fragment if the argument is \ntrue\n\n\n\n\nFor example:\n\n\nquery Hero($episode: Episode, $withFriends: Boolean!) {\n  hero(episode: $episode) {\n    name\n    friends @include(if: $withFriends) {\n      name\n    }\n  }\n}\n\n\n\n\nHere if \n$withFriends\n variable is set to \nfalse\n - friends section will be ignored and excluded \nfrom the response. Important implementation detail: those fields will never be executed \n(not just removed from response after execution).\n\n\nCustom directives\n\n\ngraphql-php\n supports custom directives even though their presence does not affect the execution of fields.\nBut you can use \nGraphQL\\Type\\Definition\\ResolveInfo\n \nin field resolvers to modify the output depending on those directives or perform statistics collection.\n\n\nOther use case is your own query validation rules relying on custom directives.\n\n\nIn \ngraphql-php\n custom directive is an instance of \nGraphQL\\Type\\Definition\\Directive\n\n(or one of its subclasses) which accepts an array of following options:\n\n\n<?php\nuse GraphQL\\Type\\Definition\\Type;\nuse GraphQL\\Type\\Definition\\Directive;\nuse GraphQL\\Type\\Definition\\DirectiveLocation;\nuse GraphQL\\Type\\Definition\\FieldArgument;\n\n$trackDirective = new Directive([\n    'name' => 'track',\n    'description' => 'Instruction to record usage of the field by client',\n    'locations' => [\n        DirectiveLocation::FIELD,\n    ],\n    'args' => [\n        new FieldArgument([\n            'name' => 'details',\n            'type' => Type::string(),\n            'description' => 'String with additional details of field usage scenario',\n            'defaultValue' => ''\n        ])\n    ]\n]);\n\n\n\n\nSee possible directive locations in \n\nGraphQL\\Type\\Definition\\DirectiveLocation\n.",
+            "text": "Built-in directives\n\n\nThe directive is a way for a client to give GraphQL server additional context and hints on how to execute\nthe query. The directive can be attached to a field or fragment and can affect the execution of the \nquery in any way the server desires.\n\n\nGraphQL specification includes two built-in directives:\n\n\n\n\n@include(if: Boolean)\n Only include this field or fragment in the result if the argument is \ntrue\n \n\n\n@skip(if: Boolean)\n Skip this field or fragment if the argument is \ntrue\n\n\n\n\nFor example:\n\n\nquery Hero($episode: Episode, $withFriends: Boolean!) {\n  hero(episode: $episode) {\n    name\n    friends @include(if: $withFriends) {\n      name\n    }\n  }\n}\n\n\n\n\nHere if \n$withFriends\n variable is set to \nfalse\n - friends section will be ignored and excluded \nfrom the response. Important implementation detail: those fields will never be executed \n(not just removed from response after execution).\n\n\nCustom directives\n\n\ngraphql-php\n supports custom directives even though their presence does not affect the execution of fields.\nBut you can use \nGraphQL\\Type\\Definition\\ResolveInfo\n \nin field resolvers to modify the output depending on those directives or perform statistics collection.\n\n\nOther use case is your own query validation rules relying on custom directives.\n\n\nIn \ngraphql-php\n custom directive is an instance of \nGraphQL\\Type\\Definition\\Directive\n\n(or one of its subclasses) which accepts an array of following options:\n\n\n<?php\nuse GraphQL\\Language\\DirectiveLocation;\nuse GraphQL\\Type\\Definition\\Type;\nuse GraphQL\\Type\\Definition\\Directive;\nuse GraphQL\\Type\\Definition\\FieldArgument;\n\n$trackDirective = new Directive([\n    'name' => 'track',\n    'description' => 'Instruction to record usage of the field by client',\n    'locations' => [\n        DirectiveLocation::FIELD,\n    ],\n    'args' => [\n        new FieldArgument([\n            'name' => 'details',\n            'type' => Type::string(),\n            'description' => 'String with additional details of field usage scenario',\n            'defaultValue' => ''\n        ])\n    ]\n]);\n\n\n\n\nSee possible directive locations in \n\nGraphQL\\Type\\Definition\\DirectiveLocation\n.",
             "title": "Directives"
         },
         {
@@ -292,7 +292,7 @@
         },
         {
             "location": "/type-system/directives/#custom-directives",
-            "text": "graphql-php  supports custom directives even though their presence does not affect the execution of fields.\nBut you can use  GraphQL\\Type\\Definition\\ResolveInfo  \nin field resolvers to modify the output depending on those directives or perform statistics collection.  Other use case is your own query validation rules relying on custom directives.  In  graphql-php  custom directive is an instance of  GraphQL\\Type\\Definition\\Directive \n(or one of its subclasses) which accepts an array of following options:  <?php\nuse GraphQL\\Type\\Definition\\Type;\nuse GraphQL\\Type\\Definition\\Directive;\nuse GraphQL\\Type\\Definition\\DirectiveLocation;\nuse GraphQL\\Type\\Definition\\FieldArgument;\n\n$trackDirective = new Directive([\n    'name' => 'track',\n    'description' => 'Instruction to record usage of the field by client',\n    'locations' => [\n        DirectiveLocation::FIELD,\n    ],\n    'args' => [\n        new FieldArgument([\n            'name' => 'details',\n            'type' => Type::string(),\n            'description' => 'String with additional details of field usage scenario',\n            'defaultValue' => ''\n        ])\n    ]\n]);  See possible directive locations in  GraphQL\\Type\\Definition\\DirectiveLocation .",
+            "text": "graphql-php  supports custom directives even though their presence does not affect the execution of fields.\nBut you can use  GraphQL\\Type\\Definition\\ResolveInfo  \nin field resolvers to modify the output depending on those directives or perform statistics collection.  Other use case is your own query validation rules relying on custom directives.  In  graphql-php  custom directive is an instance of  GraphQL\\Type\\Definition\\Directive \n(or one of its subclasses) which accepts an array of following options:  <?php\nuse GraphQL\\Language\\DirectiveLocation;\nuse GraphQL\\Type\\Definition\\Type;\nuse GraphQL\\Type\\Definition\\Directive;\nuse GraphQL\\Type\\Definition\\FieldArgument;\n\n$trackDirective = new Directive([\n    'name' => 'track',\n    'description' => 'Instruction to record usage of the field by client',\n    'locations' => [\n        DirectiveLocation::FIELD,\n    ],\n    'args' => [\n        new FieldArgument([\n            'name' => 'details',\n            'type' => Type::string(),\n            'description' => 'String with additional details of field usage scenario',\n            'defaultValue' => ''\n        ])\n    ]\n]);  See possible directive locations in  GraphQL\\Type\\Definition\\DirectiveLocation .",
             "title": "Custom directives"
         },
         {
@@ -332,19 +332,14 @@
         },
         {
             "location": "/type-system/type-language/",
-            "text": "Defining your schema\n\n\nSince 0.9.0\n\n\nType language\n is a convenient way to define your schema,\nespecially with IDE autocompletion and syntax validation.\n\n\nHere is a simple schema defined in GraphQL type language (e.g. in a separate \nschema.graphql\n file):\n\n\nschema {\n    query: Query\n    mutation: Mutation\n}\n\ntype Query {\n    greetings(input: HelloInput!): String!\n}\n\ninput HelloInput {\n    firstName: String!\n    lastName: String\n}\n\n\n\n\nIn order to create schema instance out of this file, use \n\nGraphQL\\Utils\\BuildSchema\n:\n\n\n<?php\nuse GraphQL\\Utils\\BuildSchema;\n\n$contents = file_get_contents('schema.graphql');\n$schema = BuildSchema::build($contents);\n\n\n\n\nBy default, such schema is created without any resolvers. As a result, it doesn't support \nInterfaces\n and \nUnions\n\nbecause it is impossible to resolve actual implementations during execution.\n\n\nAlso, we have to rely on \ndefault field resolver\n and \nroot value\n in \norder to execute a query against this schema.\n\n\nDefining resolvers\n\n\nSince 0.10.0\n\n\nIn order to enable \nInterfaces\n, \nUnions\n and custom field resolvers you can pass the second argument: \n\ntype config decorator\n to schema builder. \n\n\nIt accepts default type config produced by the builder and is expected to add missing options like \n\nresolveType\n for interface types or \n\nresolveField\n for object types.\n\n\n<?php\nuse GraphQL\\Utils\\BuildSchema;\n\n$typeConfigDecorator = function($typeConfig, $typeDefinitionNode) {\n    $name = $typeConfig['name'];\n    // ... add missing options to $typeConfig based on type $name\n    return $typeConfig;\n};\n\n$contents = file_get_contents('schema.graphql');\n$schema = BuildSchema::build($contents, $typeConfigDecorator);\n\n\n\n\nPerformance considerations\n\n\nSince 0.10.0\n\n\nMethod \nbuild()\n produces a \nlazy schema\n\nautomatically, so it works efficiently even with very large schemas.\n\n\nBut parsing type definition file on each request is suboptimal, so it is recommended to cache \nintermediate parsed representation of the schema for the production environment:\n\n\n<?php\nuse GraphQL\\Language\\Parser;\nuse GraphQL\\Utils\\BuildSchema;\nuse GraphQL\\Utils\\AST;\n\n$cacheFilename = 'cached_schema.php';\n\nif (!file_exists($cacheFilename)) {\n    $document = Parser::parse(file_get_contents('./schema.graphql'));\n    file_put_contents($cacheFilename, \"<?php\\nreturn \" . var_export(AST::toArray($document), true));\n} else {\n    $document = AST::fromArray(require $cacheFilename); // fromArray() is a lazy operation as well\n}\n\n$typeConfigDecorator = function () {};\n$schema = BuildSchema::build($document, $typeConfigDecorator);",
+            "text": "Defining your schema\n\n\nSince 0.9.0\n\n\nType language\n is a convenient way to define your schema,\nespecially with IDE autocompletion and syntax validation.\n\n\nHere is a simple schema defined in GraphQL type language (e.g. in a separate \nschema.graphql\n file):\n\n\nschema {\n    query: Query\n    mutation: Mutation\n}\n\ntype Query {\n    greetings(input: HelloInput!): String!\n}\n\ninput HelloInput {\n    firstName: String!\n    lastName: String\n}\n\n\n\n\nIn order to create schema instance out of this file, use \n\nGraphQL\\Utils\\BuildSchema\n:\n\n\n<?php\nuse GraphQL\\Utils\\BuildSchema;\n\n$contents = file_get_contents('schema.graphql');\n$schema = BuildSchema::build($contents);\n\n\n\n\nBy default, such schema is created without any resolvers.\n\n\nWe have to rely on \ndefault field resolver\n and \nroot value\n in \norder to execute a query against this schema.\n\n\nPerformance considerations\n\n\nSince 0.10.0\n\n\nMethod \nbuild()\n produces a \nlazy schema\n\nautomatically, so it works efficiently even with very large schemas.\n\n\nBut parsing type definition file on each request is suboptimal, so it is recommended to cache \nintermediate parsed representation of the schema for the production environment:\n\n\n<?php\nuse GraphQL\\Language\\Parser;\nuse GraphQL\\Utils\\BuildSchema;\nuse GraphQL\\Utils\\AST;\n\n$cacheFilename = 'cached_schema.php';\n\nif (!file_exists($cacheFilename)) {\n    $document = Parser::parse(file_get_contents('./schema.graphql'));\n    file_put_contents($cacheFilename, \"<?php\\nreturn \" . var_export(AST::toArray($document), true));\n} else {\n    $document = AST::fromArray(require $cacheFilename); // fromArray() is a lazy operation as well\n}\n\n$typeConfigDecorator = function () {};\n$schema = BuildSchema::build($document, $typeConfigDecorator);",
             "title": "Using Type Language"
         },
         {
             "location": "/type-system/type-language/#defining-your-schema",
-            "text": "Since 0.9.0  Type language  is a convenient way to define your schema,\nespecially with IDE autocompletion and syntax validation.  Here is a simple schema defined in GraphQL type language (e.g. in a separate  schema.graphql  file):  schema {\n    query: Query\n    mutation: Mutation\n}\n\ntype Query {\n    greetings(input: HelloInput!): String!\n}\n\ninput HelloInput {\n    firstName: String!\n    lastName: String\n}  In order to create schema instance out of this file, use  GraphQL\\Utils\\BuildSchema :  <?php\nuse GraphQL\\Utils\\BuildSchema;\n\n$contents = file_get_contents('schema.graphql');\n$schema = BuildSchema::build($contents);  By default, such schema is created without any resolvers. As a result, it doesn't support  Interfaces  and  Unions \nbecause it is impossible to resolve actual implementations during execution.  Also, we have to rely on  default field resolver  and  root value  in \norder to execute a query against this schema.",
+            "text": "Since 0.9.0  Type language  is a convenient way to define your schema,\nespecially with IDE autocompletion and syntax validation.  Here is a simple schema defined in GraphQL type language (e.g. in a separate  schema.graphql  file):  schema {\n    query: Query\n    mutation: Mutation\n}\n\ntype Query {\n    greetings(input: HelloInput!): String!\n}\n\ninput HelloInput {\n    firstName: String!\n    lastName: String\n}  In order to create schema instance out of this file, use  GraphQL\\Utils\\BuildSchema :  <?php\nuse GraphQL\\Utils\\BuildSchema;\n\n$contents = file_get_contents('schema.graphql');\n$schema = BuildSchema::build($contents);  By default, such schema is created without any resolvers.  We have to rely on  default field resolver  and  root value  in \norder to execute a query against this schema.",
             "title": "Defining your schema"
         },
-        {
-            "location": "/type-system/type-language/#defining-resolvers",
-            "text": "Since 0.10.0  In order to enable  Interfaces ,  Unions  and custom field resolvers you can pass the second argument:  type config decorator  to schema builder.   It accepts default type config produced by the builder and is expected to add missing options like  resolveType  for interface types or  resolveField  for object types.  <?php\nuse GraphQL\\Utils\\BuildSchema;\n\n$typeConfigDecorator = function($typeConfig, $typeDefinitionNode) {\n    $name = $typeConfig['name'];\n    // ... add missing options to $typeConfig based on type $name\n    return $typeConfig;\n};\n\n$contents = file_get_contents('schema.graphql');\n$schema = BuildSchema::build($contents, $typeConfigDecorator);",
-            "title": "Defining resolvers"
-        },
         {
             "location": "/type-system/type-language/#performance-considerations",
             "text": "Since 0.10.0  Method  build()  produces a  lazy schema \nautomatically, so it works efficiently even with very large schemas.  But parsing type definition file on each request is suboptimal, so it is recommended to cache \nintermediate parsed representation of the schema for the production environment:  <?php\nuse GraphQL\\Language\\Parser;\nuse GraphQL\\Utils\\BuildSchema;\nuse GraphQL\\Utils\\AST;\n\n$cacheFilename = 'cached_schema.php';\n\nif (!file_exists($cacheFilename)) {\n    $document = Parser::parse(file_get_contents('./schema.graphql'));\n    file_put_contents($cacheFilename, \"<?php\\nreturn \" . var_export(AST::toArray($document), true));\n} else {\n    $document = AST::fromArray(require $cacheFilename); // fromArray() is a lazy operation as well\n}\n\n$typeConfigDecorator = function () {};\n$schema = BuildSchema::build($document, $typeConfigDecorator);",
@@ -492,7 +487,7 @@
         },
         {
             "location": "/reference/",
-            "text": "GraphQL\\GraphQL\n\n\nThis is the primary facade for fulfilling GraphQL operations.\nSee \nrelated documentation\n.\n\n\nClass Methods:\n \n\n\n/**\n * Executes graphql query.\n *\n * More sophisticated GraphQL servers, such as those which persist queries,\n * may wish to separate the validation and execution phases to a static time\n * tooling step, and a server runtime step.\n *\n * Available options:\n *\n * schema:\n *    The GraphQL type system to use when validating and executing a query.\n * source:\n *    A GraphQL language formatted string representing the requested operation.\n * rootValue:\n *    The value provided as the first argument to resolver functions on the top\n *    level type (e.g. the query object type).\n * context:\n *    The value provided as the third argument to all resolvers.\n *    Use this to pass current session, user data, etc\n * variableValues:\n *    A mapping of variable name to runtime value to use for all variables\n *    defined in the requestString.\n * operationName:\n *    The name of the operation to use if requestString contains multiple\n *    possible operations. Can be omitted if requestString contains only\n *    one operation.\n * fieldResolver:\n *    A resolver function to use when one is not provided by the schema.\n *    If not provided, the default field resolver is used (which looks for a\n *    value on the source value with the field's name).\n * validationRules:\n *    A set of rules for query validation step. Default value is all available rules.\n *    Empty array would allow to skip query validation (may be convenient for persisted\n *    queries which are validated before persisting and assumed valid during execution)\n *\n * @api\n * @param \\GraphQL\\Type\\Schema $schema\n * @param string|DocumentNode $source\n * @param mixed $rootValue\n * @param mixed $context\n * @param array|null $variableValues\n * @param string|null $operationName\n * @param callable $fieldResolver\n * @param array $validationRules\n *\n * @return ExecutionResult\n */\nstatic function executeQuery(\n    GraphQL\\Type\\Schema $schema,\n    $source,\n    $rootValue = null,\n    $context = null,\n    $variableValues = null,\n    $operationName = null,\n    callable $fieldResolver = null,\n    array $validationRules = null\n)\n\n\n\n\n/**\n * Same as executeQuery(), but requires PromiseAdapter and always returns a Promise.\n * Useful for Async PHP platforms.\n *\n * @api\n * @param PromiseAdapter $promiseAdapter\n * @param \\GraphQL\\Type\\Schema $schema\n * @param string|DocumentNode $source\n * @param mixed $rootValue\n * @param mixed $context\n * @param array|null $variableValues\n * @param string|null $operationName\n * @param callable $fieldResolver\n * @param array $validationRules\n *\n * @return Promise\n */\nstatic function promiseToExecute(\n    GraphQL\\Executor\\Promise\\PromiseAdapter $promiseAdapter,\n    GraphQL\\Type\\Schema $schema,\n    $source,\n    $rootValue = null,\n    $context = null,\n    $variableValues = null,\n    $operationName = null,\n    callable $fieldResolver = null,\n    array $validationRules = null\n)\n\n\n\n\n/**\n * Returns directives defined in GraphQL spec\n *\n * @api\n * @return Directive[]\n */\nstatic function getStandardDirectives()\n\n\n\n\n/**\n * Returns types defined in GraphQL spec\n *\n * @api\n * @return Type[]\n */\nstatic function getStandardTypes()\n\n\n\n\n/**\n * Returns standard validation rules implementing GraphQL spec\n *\n * @api\n * @return AbstractValidationRule[]\n */\nstatic function getStandardValidationRules()\n\n\n\n\nGraphQL\\Type\\Definition\\Type\n\n\nRegistry of standard GraphQL types\nand a base class for all other types.\n\n\nClass Methods:\n \n\n\n/**\n * @api\n * @return IDType\n */\nstatic function id()\n\n\n\n\n/**\n * @api\n * @return StringType\n */\nstatic function string()\n\n\n\n\n/**\n * @api\n * @return BooleanType\n */\nstatic function boolean()\n\n\n\n\n/**\n * @api\n * @return IntType\n */\nstatic function int()\n\n\n\n\n/**\n * @api\n * @return FloatType\n */\nstatic function float()\n\n\n\n\n/**\n * @api\n * @param ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType|NonNull $wrappedType\n * @return ListOfType\n */\nstatic function listOf($wrappedType)\n\n\n\n\n/**\n * @api\n * @param ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType $wrappedType\n * @return NonNull\n */\nstatic function nonNull($wrappedType)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isInputType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isOutputType($type)\n\n\n\n\n/**\n * @api\n * @param $type\n * @return bool\n */\nstatic function isLeafType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isCompositeType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isAbstractType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType\n */\nstatic function getNullableType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType\n */\nstatic function getNamedType($type)\n\n\n\n\nGraphQL\\Type\\Definition\\ResolveInfo\n\n\nStructure containing information useful for field resolution process.\nPassed as 3rd argument to every field resolver. See \ndocs on field resolving (data fetching)\n.\n\n\nClass Props:\n \n\n\n/**\n * The name of the field being resolved\n *\n * @api\n * @var string\n */\npublic $fieldName;\n\n/**\n * AST of all nodes referencing this field in the query.\n *\n * @api\n * @var FieldNode[]\n */\npublic $fieldNodes;\n\n/**\n * Expected return type of the field being resolved\n *\n * @api\n * @var ScalarType|ObjectType|InterfaceType|UnionType|EnumType|ListOfType|NonNull\n */\npublic $returnType;\n\n/**\n * Parent type of the field being resolved\n *\n * @api\n * @var ObjectType\n */\npublic $parentType;\n\n/**\n * Path to this field from the very root value\n *\n * @api\n * @var array\n */\npublic $path;\n\n/**\n * Instance of a schema used for execution\n *\n * @api\n * @var Schema\n */\npublic $schema;\n\n/**\n * AST of all fragments defined in query\n *\n * @api\n * @var FragmentDefinitionNode[]\n */\npublic $fragments;\n\n/**\n * Root value passed to query execution\n *\n * @api\n * @var mixed\n */\npublic $rootValue;\n\n/**\n * AST of operation definition node (query, mutation)\n *\n * @api\n * @var OperationDefinitionNode\n */\npublic $operation;\n\n/**\n * Array of variables passed to query execution\n *\n * @api\n * @var array\n */\npublic $variableValues;\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Helper method that returns names of all fields selected in query for\n * $this->fieldName up to $depth levels\n *\n * Example:\n * query MyQuery{\n * {\n *   root {\n *     id,\n *     nested {\n *      nested1\n *      nested2 {\n *        nested3\n *      }\n *     }\n *   }\n * }\n *\n * Given this ResolveInfo instance is a part of \"root\" field resolution, and $depth === 1,\n * method will return:\n * [\n *     'id' => true,\n *     'nested' => [\n *         nested1 => true,\n *         nested2 => true\n *     ]\n * ]\n *\n * Warning: this method it is a naive implementation which does not take into account\n * conditional typed fragments. So use it with care for fields of interface and union types.\n *\n * @api\n * @param int $depth How many levels to include in output\n * @return array\n */\nfunction getFieldSelection($depth = 0)\n\n\n\n\nGraphQL\\Type\\Definition\\DirectiveLocation\n\n\nList of available directive locations\n\n\nClass Constants:\n \n\n\nconst IFACE = \"INTERFACE\";\nconst SUBSCRIPTION = \"SUBSCRIPTION\";\nconst FRAGMENT_SPREAD = \"FRAGMENT_SPREAD\";\nconst QUERY = \"QUERY\";\nconst MUTATION = \"MUTATION\";\nconst FRAGMENT_DEFINITION = \"FRAGMENT_DEFINITION\";\nconst INPUT_OBJECT = \"INPUT_OBJECT\";\nconst INLINE_FRAGMENT = \"INLINE_FRAGMENT\";\nconst UNION = \"UNION\";\nconst SCALAR = \"SCALAR\";\nconst FIELD_DEFINITION = \"FIELD_DEFINITION\";\nconst ARGUMENT_DEFINITION = \"ARGUMENT_DEFINITION\";\nconst ENUM = \"ENUM\";\nconst OBJECT = \"OBJECT\";\nconst ENUM_VALUE = \"ENUM_VALUE\";\nconst FIELD = \"FIELD\";\nconst SCHEMA = \"SCHEMA\";\nconst INPUT_FIELD_DEFINITION = \"INPUT_FIELD_DEFINITION\";\n\n\n\n\nGraphQL\\Type\\SchemaConfig\n\n\nSchema configuration class.\nCould be passed directly to schema constructor. List of options accepted by \ncreate\n method is\n\ndescribed in docs\n.\n\n\nUsage example:\n\n\n$config = SchemaConfig::create()\n    ->setQuery($myQueryType)\n    ->setTypeLoader($myTypeLoader);\n\n$schema = new Schema($config);\n\n\n\nClass Methods:\n \n\n\n/**\n * Converts an array of options to instance of SchemaConfig\n * (or just returns empty config when array is not passed).\n *\n * @api\n * @param array $options\n * @return SchemaConfig\n */\nstatic function create(array $options = [])\n\n\n\n\n/**\n * @api\n * @param ObjectType $query\n * @return SchemaConfig\n */\nfunction setQuery(GraphQL\\Type\\Definition\\ObjectType $query)\n\n\n\n\n/**\n * @api\n * @param ObjectType $mutation\n * @return SchemaConfig\n */\nfunction setMutation(GraphQL\\Type\\Definition\\ObjectType $mutation)\n\n\n\n\n/**\n * @api\n * @param ObjectType $subscription\n * @return SchemaConfig\n */\nfunction setSubscription(GraphQL\\Type\\Definition\\ObjectType $subscription)\n\n\n\n\n/**\n * @api\n * @param Type[]|callable $types\n * @return SchemaConfig\n */\nfunction setTypes($types)\n\n\n\n\n/**\n * @api\n * @param Directive[] $directives\n * @return SchemaConfig\n */\nfunction setDirectives(array $directives)\n\n\n\n\n/**\n * @api\n * @param callable $typeLoader\n * @return SchemaConfig\n */\nfunction setTypeLoader(callable $typeLoader)\n\n\n\n\n/**\n * @api\n * @return ObjectType\n */\nfunction getQuery()\n\n\n\n\n/**\n * @api\n * @return ObjectType\n */\nfunction getMutation()\n\n\n\n\n/**\n * @api\n * @return ObjectType\n */\nfunction getSubscription()\n\n\n\n\n/**\n * @api\n * @return Type[]\n */\nfunction getTypes()\n\n\n\n\n/**\n * @api\n * @return Directive[]\n */\nfunction getDirectives()\n\n\n\n\n/**\n * @api\n * @return callable\n */\nfunction getTypeLoader()\n\n\n\n\nGraphQL\\Type\\Schema\n\n\nSchema Definition (see \nrelated docs\n)\n\n\nA Schema is created by supplying the root types of each type of operation:\nquery, mutation (optional) and subscription (optional). A schema definition is\nthen supplied to the validator and executor. Usage Example:\n\n\n$schema = new GraphQL\\Type\\Schema([\n  'query' => $MyAppQueryRootType,\n  'mutation' => $MyAppMutationRootType,\n]);\n\n\n\nOr using Schema Config instance:\n\n\n$config = GraphQL\\Type\\SchemaConfig::create()\n    ->setQuery($MyAppQueryRootType)\n    ->setMutation($MyAppMutationRootType);\n\n$schema = new GraphQL\\Type\\Schema($config);\n\n\n\nClass Methods:\n \n\n\n/**\n * Schema constructor.\n *\n * @api\n * @param array|SchemaConfig $config\n */\nfunction __construct($config)\n\n\n\n\n/**\n * Returns schema query type\n *\n * @api\n * @return ObjectType\n */\nfunction getQueryType()\n\n\n\n\n/**\n * Returns schema mutation type\n *\n * @api\n * @return ObjectType|null\n */\nfunction getMutationType()\n\n\n\n\n/**\n * Returns schema subscription\n *\n * @api\n * @return ObjectType|null\n */\nfunction getSubscriptionType()\n\n\n\n\n/**\n * @api\n * @return SchemaConfig\n */\nfunction getConfig()\n\n\n\n\n/**\n * Returns array of all types in this schema. Keys of this array represent type names, values are instances\n * of corresponding type definitions\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @return Type[]\n */\nfunction getTypeMap()\n\n\n\n\n/**\n * Returns type by it's name\n *\n * @api\n * @param string $name\n * @return Type\n */\nfunction getType($name)\n\n\n\n\n/**\n * Returns all possible concrete types for given abstract type\n * (implementations for interfaces and members of union type for unions)\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @param AbstractType $abstractType\n * @return ObjectType[]\n */\nfunction getPossibleTypes(GraphQL\\Type\\Definition\\AbstractType $abstractType)\n\n\n\n\n/**\n * Returns true if object type is concrete type of given abstract type\n * (implementation for interfaces and members of union type for unions)\n *\n * @api\n * @param AbstractType $abstractType\n * @param ObjectType $possibleType\n * @return bool\n */\nfunction isPossibleType(\n    GraphQL\\Type\\Definition\\AbstractType $abstractType,\n    GraphQL\\Type\\Definition\\ObjectType $possibleType\n)\n\n\n\n\n/**\n * Returns a list of directives supported by this schema\n *\n * @api\n * @return Directive[]\n */\nfunction getDirectives()\n\n\n\n\n/**\n * Returns instance of directive by name\n *\n * @api\n * @param $name\n * @return Directive\n */\nfunction getDirective($name)\n\n\n\n\n/**\n * Validates schema.\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @throws InvariantViolation\n */\nfunction assertValid()\n\n\n\n\nGraphQL\\Language\\Parser\n\n\nParses string containing GraphQL query or \ntype definition\n to Abstract Syntax Tree.\n\n\nClass Methods:\n \n\n\n/**\n * Given a GraphQL source, parses it into a `GraphQL\\Language\\AST\\DocumentNode`.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * Available options:\n *\n * noLocation: boolean,\n * (By default, the parser creates AST nodes that know the location\n * in the source that they correspond to. This configuration flag\n * disables that behavior for performance or testing.)\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return DocumentNode\n */\nstatic function parse($source, array $options = [])\n\n\n\n\n/**\n * Given a string containing a GraphQL value (ex. `[42]`), parse the AST for\n * that value.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Values directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: `GraphQL\\Utils\\AST::valueFromAST()`.\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return BooleanValueNode|EnumValueNode|FloatValueNode|IntValueNode|ListValueNode|ObjectValueNode|StringValueNode|VariableNode\n */\nstatic function parseValue($source, array $options = [])\n\n\n\n\n/**\n * Given a string containing a GraphQL Type (ex. `[Int!]`), parse the AST for\n * that type.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Types directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: `GraphQL\\Utils\\AST::typeFromAST()`.\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return ListTypeNode|NameNode|NonNullTypeNode\n */\nstatic function parseType($source, array $options = [])\n\n\n\n\nGraphQL\\Language\\Printer\n\n\nPrints AST to string. Capable of printing GraphQL queries and Type definition language.\nUseful for pretty-printing queries or printing back AST for logging, documentation, etc.\n\n\nUsage example:\n\n\n$query = 'query myQuery {someField}';\n$ast = GraphQL\\Language\\Parser::parse($query);\n$printed = GraphQL\\Language\\Printer::doPrint($ast);\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Prints AST to string. Capable of printing GraphQL queries and Type definition language.\n *\n * @api\n * @param Node $ast\n * @return string\n */\nstatic function doPrint($ast)\n\n\n\n\nGraphQL\\Language\\Visitor\n\n\nUtility for efficient AST traversal and modification.\n\n\nvisit()\n will walk through an AST using a depth first traversal, calling\nthe visitor's enter function at each node in the traversal, and calling the\nleave function after visiting that node and all of it's child nodes.\n\n\nBy returning different values from the enter and leave functions, the\nbehavior of the visitor can be altered, including skipping over a sub-tree of\nthe AST (by returning false), editing the AST by returning a value or null\nto remove the value, or to stop the whole traversal by returning BREAK.\n\n\nWhen using \nvisit()\n to edit an AST, the original AST will not be modified, and\na new version of the AST with the changes applied will be returned from the\nvisit function.\n\n\n$editedAST = Visitor::visit($ast, [\n  'enter' => function ($node, $key, $parent, $path, $ancestors) {\n    // return\n    //   null: no action\n    //   Visitor::skipNode(): skip visiting this node\n    //   Visitor::stop(): stop visiting altogether\n    //   Visitor::removeNode(): delete this node\n    //   any value: replace this node with the returned value\n  },\n  'leave' => function ($node, $key, $parent, $path, $ancestors) {\n    // return\n    //   null: no action\n    //   Visitor::stop(): stop visiting altogether\n    //   Visitor::removeNode(): delete this node\n    //   any value: replace this node with the returned value\n  }\n]);\n\n\n\nAlternatively to providing enter() and leave() functions, a visitor can\ninstead provide functions named the same as the \nkinds of AST nodes\n,\nor enter/leave visitors at a named key, leading to four permutations of\nvisitor API:\n\n\n1) Named visitors triggered when entering a node a specific kind.\n\n\nVisitor::visit($ast, [\n  'Kind' => function ($node) {\n    // enter the \"Kind\" node\n  }\n]);\n\n\n\n2) Named visitors that trigger upon entering and leaving a node of\n   a specific kind.\n\n\nVisitor::visit($ast, [\n  'Kind' => [\n    'enter' => function ($node) {\n      // enter the \"Kind\" node\n    }\n    'leave' => function ($node) {\n      // leave the \"Kind\" node\n    }\n  ]\n]);\n\n\n\n3) Generic visitors that trigger upon entering and leaving any node.\n\n\nVisitor::visit($ast, [\n  'enter' => function ($node) {\n    // enter any node\n  },\n  'leave' => function ($node) {\n    // leave any node\n  }\n]);\n\n\n\n4) Parallel visitors for entering and leaving nodes of a specific kind.\n\n\nVisitor::visit($ast, [\n  'enter' => [\n    'Kind' => function($node) {\n      // enter the \"Kind\" node\n    }\n  },\n  'leave' => [\n    'Kind' => function ($node) {\n      // leave the \"Kind\" node\n    }\n  ]\n]);\n\n\n\nClass Methods:\n \n\n\n/**\n * Visit the AST (see class description for details)\n *\n * @api\n * @param Node $root\n * @param array $visitor\n * @param array $keyMap\n * @return Node|mixed\n * @throws \\Exception\n */\nstatic function visit($root, $visitor, $keyMap = null)\n\n\n\n\n/**\n * Returns marker for visitor break\n *\n * @api\n * @return VisitorOperation\n */\nstatic function stop()\n\n\n\n\n/**\n * Returns marker for skipping current node\n *\n * @api\n * @return VisitorOperation\n */\nstatic function skipNode()\n\n\n\n\n/**\n * Returns marker for removing a node\n *\n * @api\n * @return VisitorOperation\n */\nstatic function removeNode()\n\n\n\n\nGraphQL\\Language\\AST\\NodeKind\n\n\nClass Constants:\n \n\n\nconst NAME = \"Name\";\nconst DOCUMENT = \"Document\";\nconst OPERATION_DEFINITION = \"OperationDefinition\";\nconst VARIABLE_DEFINITION = \"VariableDefinition\";\nconst VARIABLE = \"Variable\";\nconst SELECTION_SET = \"SelectionSet\";\nconst FIELD = \"Field\";\nconst ARGUMENT = \"Argument\";\nconst FRAGMENT_SPREAD = \"FragmentSpread\";\nconst INLINE_FRAGMENT = \"InlineFragment\";\nconst FRAGMENT_DEFINITION = \"FragmentDefinition\";\nconst INT = \"IntValue\";\nconst FLOAT = \"FloatValue\";\nconst STRING = \"StringValue\";\nconst BOOLEAN = \"BooleanValue\";\nconst ENUM = \"EnumValue\";\nconst NULL = \"NullValue\";\nconst LST = \"ListValue\";\nconst OBJECT = \"ObjectValue\";\nconst OBJECT_FIELD = \"ObjectField\";\nconst DIRECTIVE = \"Directive\";\nconst NAMED_TYPE = \"NamedType\";\nconst LIST_TYPE = \"ListType\";\nconst NON_NULL_TYPE = \"NonNullType\";\nconst SCHEMA_DEFINITION = \"SchemaDefinition\";\nconst OPERATION_TYPE_DEFINITION = \"OperationTypeDefinition\";\nconst SCALAR_TYPE_DEFINITION = \"ScalarTypeDefinition\";\nconst OBJECT_TYPE_DEFINITION = \"ObjectTypeDefinition\";\nconst FIELD_DEFINITION = \"FieldDefinition\";\nconst INPUT_VALUE_DEFINITION = \"InputValueDefinition\";\nconst INTERFACE_TYPE_DEFINITION = \"InterfaceTypeDefinition\";\nconst UNION_TYPE_DEFINITION = \"UnionTypeDefinition\";\nconst ENUM_TYPE_DEFINITION = \"EnumTypeDefinition\";\nconst ENUM_VALUE_DEFINITION = \"EnumValueDefinition\";\nconst INPUT_OBJECT_TYPE_DEFINITION = \"InputObjectTypeDefinition\";\nconst TYPE_EXTENSION_DEFINITION = \"TypeExtensionDefinition\";\nconst DIRECTIVE_DEFINITION = \"DirectiveDefinition\";\n\n\n\n\nGraphQL\\Executor\\Executor\n\n\nImplements the \"Evaluating requests\" section of the GraphQL specification.\n\n\nClass Methods:\n \n\n\n/**\n * Executes DocumentNode against given $schema.\n *\n * Always returns ExecutionResult and never throws. All errors which occur during operation\n * execution are collected in `$result->errors`.\n *\n * @api\n * @param Schema $schema\n * @param DocumentNode $ast\n * @param $rootValue\n * @param $contextValue\n * @param array|\\ArrayAccess $variableValues\n * @param null $operationName\n * @param callable $fieldResolver\n *\n * @return ExecutionResult|Promise\n */\nstatic function execute(\n    GraphQL\\Type\\Schema $schema,\n    GraphQL\\Language\\AST\\DocumentNode $ast,\n    $rootValue = null,\n    $contextValue = null,\n    $variableValues = null,\n    $operationName = null,\n    callable $fieldResolver = null\n)\n\n\n\n\n/**\n * Same as execute(), but requires promise adapter and returns a promise which is always\n * fulfilled with an instance of ExecutionResult and never rejected.\n *\n * Useful for async PHP platforms.\n *\n * @api\n * @param PromiseAdapter $promiseAdapter\n * @param Schema $schema\n * @param DocumentNode $ast\n * @param null $rootValue\n * @param null $contextValue\n * @param null $variableValues\n * @param null $operationName\n * @param callable|null $fieldResolver\n * @return Promise\n */\nstatic function promiseToExecute(\n    GraphQL\\Executor\\Promise\\PromiseAdapter $promiseAdapter,\n    GraphQL\\Type\\Schema $schema,\n    GraphQL\\Language\\AST\\DocumentNode $ast,\n    $rootValue = null,\n    $contextValue = null,\n    $variableValues = null,\n    $operationName = null,\n    callable $fieldResolver = null\n)\n\n\n\n\nGraphQL\\Executor\\ExecutionResult\n\n\nReturned after \nquery execution\n.\nRepresents both - result of successful execution and of a failed one\n(with errors collected in \nerrors\n prop)\n\n\nCould be converted to \nspec-compliant\n\nserializable array using \ntoArray()\n\n\nClass Props:\n \n\n\n/**\n * Data collected from resolvers during query execution\n *\n * @api\n * @var array\n */\npublic $data;\n\n/**\n * Errors registered during query execution.\n *\n * If an error was caused by exception thrown in resolver, $error->getPrevious() would\n * contain original exception.\n *\n * @api\n * @var \\GraphQL\\Error\\Error[]\n */\npublic $errors;\n\n/**\n * User-defined serializable array of extensions included in serialized result.\n * Conforms to\n *\n * @api\n * @var array\n */\npublic $extensions;\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Define custom error formatting (must conform to http://facebook.github.io/graphql/#sec-Errors)\n *\n * Expected signature is: function (GraphQL\\Error\\Error $error): array\n *\n * Default formatter is \"GraphQL\\Error\\FormattedError::createFromException\"\n *\n * Expected returned value must be an array:\n * array(\n *    'message' => 'errorMessage',\n *    // ... other keys\n * );\n *\n * @api\n * @param callable $errorFormatter\n * @return $this\n */\nfunction setErrorFormatter(callable $errorFormatter)\n\n\n\n\n/**\n * Define custom logic for error handling (filtering, logging, etc).\n *\n * Expected handler signature is: function (array $errors, callable $formatter): array\n *\n * Default handler is:\n * function (array $errors, callable $formatter) {\n *     return array_map($formatter, $errors);\n * }\n *\n * @api\n * @param callable $handler\n * @return $this\n */\nfunction setErrorsHandler(callable $handler)\n\n\n\n\n/**\n * Converts GraphQL query result to spec-compliant serializable array using provided\n * errors handler and formatter.\n *\n * If debug argument is passed, output of error formatter is enriched which debugging information\n * (\"debugMessage\", \"trace\" keys depending on flags).\n *\n * $debug argument must be either bool (only adds \"debugMessage\" to result) or sum of flags from\n * GraphQL\\Error\\Debug\n *\n * @api\n * @param bool|int $debug\n * @return array\n */\nfunction toArray($debug = false)\n\n\n\n\nGraphQL\\Executor\\Promise\\PromiseAdapter\n\n\nProvides a means for integration of async PHP platforms (\nrelated docs\n)\n\n\nInterface Methods:\n \n\n\n/**\n * Return true if the value is a promise or a deferred of the underlying platform\n *\n * @api\n * @param mixed $value\n * @return bool\n */\nfunction isThenable($value)\n\n\n\n\n/**\n * Converts thenable of the underlying platform into GraphQL\\Executor\\Promise\\Promise instance\n *\n * @api\n * @param object $thenable\n * @return Promise\n */\nfunction convertThenable($thenable)\n\n\n\n\n/**\n * Accepts our Promise wrapper, extracts adopted promise out of it and executes actual `then` logic described\n * in Promises/A+ specs. Then returns new wrapped instance of GraphQL\\Executor\\Promise\\Promise.\n *\n * @api\n * @param Promise $promise\n * @param callable|null $onFulfilled\n * @param callable|null $onRejected\n *\n * @return Promise\n */\nfunction then(\n    GraphQL\\Executor\\Promise\\Promise $promise,\n    callable $onFulfilled = null,\n    callable $onRejected = null\n)\n\n\n\n\n/**\n * Creates a Promise\n *\n * Expected resolver signature:\n *     function(callable $resolve, callable $reject)\n *\n * @api\n * @param callable $resolver\n * @return Promise\n */\nfunction create(callable $resolver)\n\n\n\n\n/**\n * Creates a fulfilled Promise for a value if the value is not a promise.\n *\n * @api\n * @param mixed $value\n * @return Promise\n */\nfunction createFulfilled($value = null)\n\n\n\n\n/**\n * Creates a rejected promise for a reason if the reason is not a promise. If\n * the provided reason is a promise, then it is returned as-is.\n *\n * @api\n * @param \\Throwable $reason\n * @return Promise\n */\nfunction createRejected($reason)\n\n\n\n\n/**\n * Given an array of promises (or values), returns a promise that is fulfilled when all the\n * items in the array are fulfilled.\n *\n * @api\n * @param array $promisesOrValues Promises or values.\n * @return Promise\n */\nfunction all(array $promisesOrValues)\n\n\n\n\nGraphQL\\Validator\\DocumentValidator\n\n\nImplements the \"Validation\" section of the spec.\n\n\nValidation runs synchronously, returning an array of encountered errors, or\nan empty array if no errors were encountered and the document is valid.\n\n\nA list of specific validation rules may be provided. If not provided, the\ndefault list of rules defined by the GraphQL specification will be used.\n\n\nEach validation rule is an instance of GraphQL\\Validator\\Rules\\AbstractValidationRule\nwhich returns a visitor (see the \nGraphQL\\Language\\Visitor API\n).\n\n\nVisitor methods are expected to return an instance of \nGraphQL\\Error\\Error\n,\nor array of such instances when invalid.\n\n\nOptionally a custom TypeInfo instance may be provided. If not provided, one\nwill be created from the provided schema.\n\n\nClass Methods:\n \n\n\n/**\n * Primary method for query validation. See class description for details.\n *\n * @api\n * @param Schema $schema\n * @param DocumentNode $ast\n * @param AbstractValidationRule[]|null $rules\n * @param TypeInfo|null $typeInfo\n * @return Error[]\n */\nstatic function validate(\n    GraphQL\\Type\\Schema $schema,\n    GraphQL\\Language\\AST\\DocumentNode $ast,\n    array $rules = null,\n    GraphQL\\Utils\\TypeInfo $typeInfo = null\n)\n\n\n\n\n/**\n * Returns all global validation rules.\n *\n * @api\n * @return AbstractValidationRule[]\n */\nstatic function allRules()\n\n\n\n\n/**\n * Returns global validation rule by name. Standard rules are named by class name, so\n * example usage for such rules:\n *\n * $rule = DocumentValidator::getRule(GraphQL\\Validator\\Rules\\QueryComplexity::class);\n *\n * @api\n * @param string $name\n * @return AbstractValidationRule\n */\nstatic function getRule($name)\n\n\n\n\n/**\n * Add rule to list of global validation rules\n *\n * @api\n * @param AbstractValidationRule $rule\n */\nstatic function addRule(GraphQL\\Validator\\Rules\\AbstractValidationRule $rule)\n\n\n\n\nGraphQL\\Error\\Error\n\n\nDescribes an Error found during the parse, validate, or\nexecute phases of performing a GraphQL operation. In addition to a message\nand stack trace, it also includes information about the locations in a\nGraphQL document and/or execution result that correspond to the Error.\n\n\nWhen the error was caused by an exception thrown in resolver, original exception\nis available via \ngetPrevious()\n.\n\n\nAlso read related docs on \nerror handling\n\n\nClass extends standard PHP \n\\Exception\n, so all standard methods of base \n\\Exception\n class\nare available in addition to those listed below.\n\n\nClass Constants:\n \n\n\nconst CATEGORY_GRAPHQL = \"graphql\";\nconst CATEGORY_INTERNAL = \"internal\";\n\n\n\n\nClass Methods:\n \n\n\n/**\n * An array of locations within the source GraphQL document which correspond to this error.\n *\n * Each entry has information about `line` and `column` within source GraphQL document:\n * $location->line;\n * $location->column;\n *\n * Errors during validation often contain multiple locations, for example to\n * point out to field mentioned in multiple fragments. Errors during execution include a\n * single location, the field which produced the error.\n *\n * @api\n * @return SourceLocation[]\n */\nfunction getLocations()\n\n\n\n\n/**\n * Returns an array describing the path from the root value to the field which produced this error.\n * Only included for execution errors.\n *\n * @api\n * @return array|null\n */\nfunction getPath()\n\n\n\n\nGraphQL\\Error\\Warning\n\n\nEncapsulates warnings produced by the library.\n\n\nWarnings can be suppressed (individually or all) if required.\nAlso it is possible to override warning handler (which is \ntrigger_error()\n by default)\n\n\nClass Constants:\n \n\n\nconst WARNING_NAME = 1;\nconst WARNING_ASSIGN = 2;\nconst WARNING_CONFIG = 4;\nconst WARNING_FULL_SCHEMA_SCAN = 8;\nconst WARNING_CONFIG_DEPRECATION = 16;\nconst WARNING_NOT_A_TYPE = 32;\nconst ALL = 63;\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Sets warning handler which can intercept all system warnings.\n * When not set, trigger_error() is used to notify about warnings.\n *\n * @api\n * @param callable|null $warningHandler\n */\nstatic function setWarningHandler(callable $warningHandler = null)\n\n\n\n\n/**\n * Suppress warning by id (has no effect when custom warning handler is set)\n *\n * Usage example:\n * Warning::suppress(Warning::WARNING_NOT_A_TYPE)\n *\n * When passing true - suppresses all warnings.\n *\n * @api\n * @param bool|int $suppress\n */\nstatic function suppress($suppress = false)\n\n\n\n\n/**\n * Re-enable previously suppressed warning by id\n *\n * Usage example:\n * Warning::suppress(Warning::WARNING_NOT_A_TYPE)\n *\n * When passing true - re-enables all warnings.\n *\n * @api\n * @param bool|int $enable\n */\nstatic function enable($enable = false)\n\n\n\n\nGraphQL\\Error\\ClientAware\n\n\nThis interface is used for \ndefault error formatting\n.\n\n\nOnly errors implementing this interface (and returning true from \nisClientSafe()\n)\nwill be formatted with original error message.\n\n\nAll other errors will be formatted with generic \"Internal server error\".\n\n\nInterface Methods:\n \n\n\n/**\n * Returns true when exception message is safe to be displayed to a client.\n *\n * @api\n * @return bool\n */\nfunction isClientSafe()\n\n\n\n\n/**\n * Returns string describing a category of the error.\n *\n * Value \"graphql\" is reserved for errors produced by query parsing or validation, do not use it.\n *\n * @api\n * @return string\n */\nfunction getCategory()\n\n\n\n\nGraphQL\\Error\\Debug\n\n\nCollection of flags for \nerror debugging\n.\n\n\nClass Constants:\n \n\n\nconst INCLUDE_DEBUG_MESSAGE = 1;\nconst INCLUDE_TRACE = 2;\nconst RETHROW_INTERNAL_EXCEPTIONS = 4;\n\n\n\n\nGraphQL\\Error\\FormattedError\n\n\nThis class is used for \ndefault error formatting\n.\nIt converts PHP exceptions to \nspec-compliant errors\n\nand provides tools for error debugging.\n\n\nClass Methods:\n \n\n\n/**\n * Set default error message for internal errors formatted using createFormattedError().\n * This value can be overridden by passing 3rd argument to `createFormattedError()`.\n *\n * @api\n * @param string $msg\n */\nstatic function setInternalErrorMessage($msg)\n\n\n\n\n/**\n * Standard GraphQL error formatter. Converts any exception to array\n * conforming to GraphQL spec.\n *\n * This method only exposes exception message when exception implements ClientAware interface\n * (or when debug flags are passed).\n *\n * For a list of available debug flags see GraphQL\\Error\\Debug constants.\n *\n * @api\n * @param \\Throwable $e\n * @param bool|int $debug\n * @param string $internalErrorMessage\n * @return array\n * @throws \\Throwable\n */\nstatic function createFromException($e, $debug = false, $internalErrorMessage = null)\n\n\n\n\n/**\n * Returns error trace as serializable array\n *\n * @api\n * @param \\Throwable $error\n * @return array\n */\nstatic function toSafeTrace($error)\n\n\n\n\nGraphQL\\Server\\StandardServer\n\n\nGraphQL server compatible with both: \nexpress-graphql\n\nand \nApollo Server\n.\nUsage Example:\n\n\n$server = new StandardServer([\n  'schema' => $mySchema\n]);\n$server->handleRequest();\n\n\n\nOr using \nServerConfig\n instance:\n\n\n$config = GraphQL\\Server\\ServerConfig::create()\n    ->setSchema($mySchema)\n    ->setContext($myContext);\n\n$server = new GraphQL\\Server\\StandardServer($config);\n$server->handleRequest();\n\n\n\nSee \ndedicated section in docs\n for details.\n\n\nClass Methods:\n \n\n\n/**\n * Converts and exception to error and sends spec-compliant HTTP 500 error.\n * Useful when an exception is thrown somewhere outside of server execution context\n * (e.g. during schema instantiation).\n *\n * @api\n * @param \\Throwable $error\n * @param bool $debug\n * @param bool $exitWhenDone\n */\nstatic function send500Error($error, $debug = false, $exitWhenDone = false)\n\n\n\n\n/**\n * Creates new instance of a standard GraphQL HTTP server\n *\n * @api\n * @param ServerConfig|array $config\n */\nfunction __construct($config)\n\n\n\n\n/**\n * Parses HTTP request, executes and emits response (using standard PHP `header` function and `echo`)\n *\n * By default (when $parsedBody is not set) it uses PHP globals to parse a request.\n * It is possible to implement request parsing elsewhere (e.g. using framework Request instance)\n * and then pass it to the server.\n *\n * See `executeRequest()` if you prefer to emit response yourself\n * (e.g. using Response object of some framework)\n *\n * @api\n * @param OperationParams|OperationParams[] $parsedBody\n * @param bool $exitWhenDone\n */\nfunction handleRequest($parsedBody = null, $exitWhenDone = false)\n\n\n\n\n/**\n * Executes GraphQL operation and returns execution result\n * (or promise when promise adapter is different from SyncPromiseAdapter).\n *\n * By default (when $parsedBody is not set) it uses PHP globals to parse a request.\n * It is possible to implement request parsing elsewhere (e.g. using framework Request instance)\n * and then pass it to the server.\n *\n * PSR-7 compatible method executePsrRequest() does exactly this.\n *\n * @api\n * @param OperationParams|OperationParams[] $parsedBody\n * @return ExecutionResult|ExecutionResult[]|Promise\n * @throws InvariantViolation\n */\nfunction executeRequest($parsedBody = null)\n\n\n\n\n/**\n * Executes PSR-7 request and fulfills PSR-7 response.\n *\n * See `executePsrRequest()` if you prefer to create response yourself\n * (e.g. using specific JsonResponse instance of some framework).\n *\n * @api\n * @param ServerRequestInterface $request\n * @param ResponseInterface $response\n * @param StreamInterface $writableBodyStream\n * @return ResponseInterface|Promise\n */\nfunction processPsrRequest(\n    Psr\\Http\\Message\\ServerRequestInterface $request,\n    Psr\\Http\\Message\\ResponseInterface $response,\n    Psr\\Http\\Message\\StreamInterface $writableBodyStream\n)\n\n\n\n\n/**\n * Executes GraphQL operation and returns execution result\n * (or promise when promise adapter is different from SyncPromiseAdapter)\n *\n * @api\n * @param ServerRequestInterface $request\n * @return ExecutionResult|ExecutionResult[]|Promise\n */\nfunction executePsrRequest(Psr\\Http\\Message\\ServerRequestInterface $request)\n\n\n\n\n/**\n * Returns an instance of Server helper, which contains most of the actual logic for\n * parsing / validating / executing request (which could be re-used by other server implementations)\n *\n * @api\n * @return Helper\n */\nfunction getHelper()\n\n\n\n\nGraphQL\\Server\\ServerConfig\n\n\nServer configuration class.\nCould be passed directly to server constructor. List of options accepted by \ncreate\n method is\n\ndescribed in docs\n.\n\n\nUsage example:\n\n\n$config = GraphQL\\Server\\ServerConfig::create()\n    ->setSchema($mySchema)\n    ->setContext($myContext);\n\n$server = new GraphQL\\Server\\StandardServer($config);\n\n\n\nClass Methods:\n \n\n\n/**\n * Converts an array of options to instance of ServerConfig\n * (or just returns empty config when array is not passed).\n *\n * @api\n * @param array $config\n * @return ServerConfig\n */\nstatic function create(array $config = [])\n\n\n\n\n/**\n * @api\n * @param Schema $schema\n * @return $this\n */\nfunction setSchema(GraphQL\\Type\\Schema $schema)\n\n\n\n\n/**\n * @api\n * @param mixed|\\Closure $context\n * @return $this\n */\nfunction setContext($context)\n\n\n\n\n/**\n * @api\n * @param mixed|\\Closure $rootValue\n * @return $this\n */\nfunction setRootValue($rootValue)\n\n\n\n\n/**\n * Expects function(Throwable $e) : array\n *\n * @api\n * @param callable $errorFormatter\n * @return $this\n */\nfunction setErrorFormatter(callable $errorFormatter)\n\n\n\n\n/**\n * Expects function(array $errors, callable $formatter) : array\n *\n * @api\n * @param callable $handler\n * @return $this\n */\nfunction setErrorsHandler(callable $handler)\n\n\n\n\n/**\n * Set validation rules for this server.\n *\n * @api\n * @param array|callable\n * @return $this\n */\nfunction setValidationRules($validationRules)\n\n\n\n\n/**\n * @api\n * @param callable $fieldResolver\n * @return $this\n */\nfunction setFieldResolver(callable $fieldResolver)\n\n\n\n\n/**\n * Expects function($queryId, OperationParams $params) : string|DocumentNode\n *\n * This function must return query string or valid DocumentNode.\n *\n * @api\n * @param callable $persistentQueryLoader\n * @return $this\n */\nfunction setPersistentQueryLoader(callable $persistentQueryLoader)\n\n\n\n\n/**\n * Set response debug flags. See GraphQL\\Error\\Debug class for a list of all available flags\n *\n * @api\n * @param bool|int $set\n * @return $this\n */\nfunction setDebug($set = false)\n\n\n\n\n/**\n * Allow batching queries (disabled by default)\n *\n * @api\n * @param bool $enableBatching\n * @return $this\n */\nfunction setQueryBatching($enableBatching)\n\n\n\n\n/**\n * @api\n * @param PromiseAdapter $promiseAdapter\n * @return $this\n */\nfunction setPromiseAdapter(GraphQL\\Executor\\Promise\\PromiseAdapter $promiseAdapter)\n\n\n\n\nGraphQL\\Server\\Helper\n\n\nContains functionality that could be re-used by various server implementations\n\n\nClass Methods:\n \n\n\n/**\n * Parses HTTP request using PHP globals and returns GraphQL OperationParams\n * contained in this request. For batched requests it returns an array of OperationParams.\n *\n * This function does not check validity of these params\n * (validation is performed separately in validateOperationParams() method).\n *\n * If $readRawBodyFn argument is not provided - will attempt to read raw request body\n * from `php://input` stream.\n *\n * Internally it normalizes input to $method, $bodyParams and $queryParams and\n * calls `parseRequestParams()` to produce actual return value.\n *\n * For PSR-7 request parsing use `parsePsrRequest()` instead.\n *\n * @api\n * @param callable|null $readRawBodyFn\n * @return OperationParams|OperationParams[]\n * @throws RequestError\n */\nfunction parseHttpRequest(callable $readRawBodyFn = null)\n\n\n\n\n/**\n * Parses normalized request params and returns instance of OperationParams\n * or array of OperationParams in case of batch operation.\n *\n * Returned value is a suitable input for `executeOperation` or `executeBatch` (if array)\n *\n * @api\n * @param string $method\n * @param array $bodyParams\n * @param array $queryParams\n * @return OperationParams|OperationParams[]\n * @throws RequestError\n */\nfunction parseRequestParams($method, array $bodyParams, array $queryParams)\n\n\n\n\n/**\n * Checks validity of OperationParams extracted from HTTP request and returns an array of errors\n * if params are invalid (or empty array when params are valid)\n *\n * @api\n * @param OperationParams $params\n * @return Error[]\n */\nfunction validateOperationParams(GraphQL\\Server\\OperationParams $params)\n\n\n\n\n/**\n * Executes GraphQL operation with given server configuration and returns execution result\n * (or promise when promise adapter is different from SyncPromiseAdapter)\n *\n * @api\n * @param ServerConfig $config\n * @param OperationParams $op\n *\n * @return ExecutionResult|Promise\n */\nfunction executeOperation(GraphQL\\Server\\ServerConfig $config, GraphQL\\Server\\OperationParams $op)\n\n\n\n\n/**\n * Executes batched GraphQL operations with shared promise queue\n * (thus, effectively batching deferreds|promises of all queries at once)\n *\n * @api\n * @param ServerConfig $config\n * @param OperationParams[] $operations\n * @return ExecutionResult[]|Promise\n */\nfunction executeBatch(GraphQL\\Server\\ServerConfig $config, array $operations)\n\n\n\n\n/**\n * Send response using standard PHP `header()` and `echo`.\n *\n * @api\n * @param Promise|ExecutionResult|ExecutionResult[] $result\n * @param bool $exitWhenDone\n */\nfunction sendResponse($result, $exitWhenDone = false)\n\n\n\n\n/**\n * Converts PSR-7 request to OperationParams[]\n *\n * @api\n * @param ServerRequestInterface $request\n * @return array|Helper\n * @throws RequestError\n */\nfunction parsePsrRequest(Psr\\Http\\Message\\ServerRequestInterface $request)\n\n\n\n\n/**\n * Converts query execution result to PSR-7 response\n *\n * @api\n * @param Promise|ExecutionResult|ExecutionResult[] $result\n * @param ResponseInterface $response\n * @param StreamInterface $writableBodyStream\n * @return Promise|ResponseInterface\n */\nfunction toPsrResponse(\n    $result,\n    Psr\\Http\\Message\\ResponseInterface $response,\n    Psr\\Http\\Message\\StreamInterface $writableBodyStream\n)\n\n\n\n\nGraphQL\\Server\\OperationParams\n\n\nStructure representing parsed HTTP parameters for GraphQL operation\n\n\nClass Props:\n \n\n\n/**\n * Id of the query (when using persistent queries).\n *\n * Valid aliases (case-insensitive):\n * - id\n * - queryId\n * - documentId\n *\n * @api\n * @var string\n */\npublic $queryId;\n\n/**\n * @api\n * @var string\n */\npublic $query;\n\n/**\n * @api\n * @var string\n */\npublic $operation;\n\n/**\n * @api\n * @var array\n */\npublic $variables;\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Creates an instance from given array\n *\n * @api\n * @param array $params\n * @param bool $readonly\n * @return OperationParams\n */\nstatic function create(array $params, $readonly = false)\n\n\n\n\n/**\n * @api\n * @param string $key\n * @return mixed\n */\nfunction getOriginalInput($key)\n\n\n\n\n/**\n * Indicates that operation is executed in read-only context\n * (e.g. via HTTP GET request)\n *\n * @api\n * @return bool\n */\nfunction isReadOnly()\n\n\n\n\nGraphQL\\Utils\\BuildSchema\n\n\nBuild instance of \nGraphQL\\Type\\Schema\n out of type language definition (string or parsed AST)\nSee \nsection in docs\n for details.\n\n\nClass Methods:\n \n\n\n/**\n * This takes the ast of a schema document produced by the parse function in\n * GraphQL\\Language\\Parser.\n *\n * If no schema definition is provided, then it will look for types named Query\n * and Mutation.\n *\n * Given that AST it constructs a GraphQL\\Type\\Schema. The resulting schema\n * has no resolve methods, so execution will use default resolvers.\n *\n * @api\n * @param DocumentNode $ast\n * @param callable $typeConfigDecorator\n * @return Schema\n * @throws Error\n */\nstatic function buildAST(GraphQL\\Language\\AST\\DocumentNode $ast, callable $typeConfigDecorator = null)\n\n\n\n\n/**\n * A helper function to build a GraphQLSchema directly from a source\n * document.\n *\n * @api\n * @param DocumentNode|Source|string $source\n * @param callable $typeConfigDecorator\n * @return Schema\n */\nstatic function build($source, callable $typeConfigDecorator = null)\n\n\n\n\nGraphQL\\Utils\\AST\n\n\nVarious utilities dealing with AST\n\n\nClass Methods:\n \n\n\n/**\n * Convert representation of AST as an associative array to instance of GraphQL\\Language\\AST\\Node.\n *\n * For example:\n *\n * ```php\n * AST::fromArray([\n *     'kind' => 'ListValue',\n *     'values' => [\n *         ['kind' => 'StringValue', 'value' => 'my str'],\n *         ['kind' => 'StringValue', 'value' => 'my other str']\n *     ],\n *     'loc' => ['start' => 21, 'end' => 25]\n * ]);\n * ```\n *\n * Will produce instance of `ListValueNode` where `values` prop is a lazily-evaluated `NodeList`\n * returning instances of `StringValueNode` on access.\n *\n * This is a reverse operation for AST::toArray($node)\n *\n * @api\n * @param array $node\n * @return Node\n */\nstatic function fromArray(array $node)\n\n\n\n\n/**\n * Convert AST node to serializable array\n *\n * @api\n * @param Node $node\n * @return array\n */\nstatic function toArray(GraphQL\\Language\\AST\\Node $node)\n\n\n\n\n/**\n * Produces a GraphQL Value AST given a PHP value.\n *\n * Optionally, a GraphQL type may be provided, which will be used to\n * disambiguate between value primitives.\n *\n * | PHP Value     | GraphQL Value        |\n * | ------------- | -------------------- |\n * | Object        | Input Object         |\n * | Assoc Array   | Input Object         |\n * | Array         | List                 |\n * | Boolean       | Boolean              |\n * | String        | String / Enum Value  |\n * | Int           | Int                  |\n * | Float         | Int / Float          |\n * | Mixed         | Enum Value           |\n * | null          | NullValue            |\n *\n * @api\n * @param $value\n * @param InputType $type\n * @return ObjectValueNode|ListValueNode|BooleanValueNode|IntValueNode|FloatValueNode|EnumValueNode|StringValueNode|NullValueNode\n */\nstatic function astFromValue($value, GraphQL\\Type\\Definition\\InputType $type)\n\n\n\n\n/**\n * Produces a PHP value given a GraphQL Value AST.\n *\n * A GraphQL type must be provided, which will be used to interpret different\n * GraphQL Value literals.\n *\n * Returns `null` when the value could not be validly coerced according to\n * the provided type.\n *\n * | GraphQL Value        | PHP Value     |\n * | -------------------- | ------------- |\n * | Input Object         | Assoc Array   |\n * | List                 | Array         |\n * | Boolean              | Boolean       |\n * | String               | String        |\n * | Int / Float          | Int / Float   |\n * | Enum Value           | Mixed         |\n * | Null Value           | null          |\n *\n * @api\n * @param $valueNode\n * @param InputType $type\n * @param null $variables\n * @return array|null|\\stdClass\n * @throws \\Exception\n */\nstatic function valueFromAST($valueNode, GraphQL\\Type\\Definition\\InputType $type, $variables = null)\n\n\n\n\n/**\n * Returns type definition for given AST Type node\n *\n * @api\n * @param Schema $schema\n * @param NamedTypeNode|ListTypeNode|NonNullTypeNode $inputTypeNode\n * @return Type\n * @throws InvariantViolation\n */\nstatic function typeFromAST(GraphQL\\Type\\Schema $schema, $inputTypeNode)\n\n\n\n\n/**\n * Returns operation type (\"query\", \"mutation\" or \"subscription\") given a document and operation name\n *\n * @api\n * @param DocumentNode $document\n * @param string $operationName\n * @return bool\n */\nstatic function getOperation(GraphQL\\Language\\AST\\DocumentNode $document, $operationName = null)\n\n\n\n\nGraphQL\\Utils\\SchemaPrinter\n\n\nGiven an instance of Schema, prints it in GraphQL type language.\n\n\nClass Methods:\n \n\n\n/**\n * @api\n * @param Schema $schema\n * @return string\n */\nstatic function doPrint(GraphQL\\Type\\Schema $schema)\n\n\n\n\n/**\n * @api\n * @param Schema $schema\n * @return string\n */\nstatic function printIntrosepctionSchema(GraphQL\\Type\\Schema $schema)",
+            "text": "GraphQL\\GraphQL\n\n\nThis is the primary facade for fulfilling GraphQL operations.\nSee \nrelated documentation\n.\n\n\nClass Methods:\n \n\n\n/**\n * Executes graphql query.\n *\n * More sophisticated GraphQL servers, such as those which persist queries,\n * may wish to separate the validation and execution phases to a static time\n * tooling step, and a server runtime step.\n *\n * Available options:\n *\n * schema:\n *    The GraphQL type system to use when validating and executing a query.\n * source:\n *    A GraphQL language formatted string representing the requested operation.\n * rootValue:\n *    The value provided as the first argument to resolver functions on the top\n *    level type (e.g. the query object type).\n * context:\n *    The value provided as the third argument to all resolvers.\n *    Use this to pass current session, user data, etc\n * variableValues:\n *    A mapping of variable name to runtime value to use for all variables\n *    defined in the requestString.\n * operationName:\n *    The name of the operation to use if requestString contains multiple\n *    possible operations. Can be omitted if requestString contains only\n *    one operation.\n * fieldResolver:\n *    A resolver function to use when one is not provided by the schema.\n *    If not provided, the default field resolver is used (which looks for a\n *    value on the source value with the field's name).\n * validationRules:\n *    A set of rules for query validation step. Default value is all available rules.\n *    Empty array would allow to skip query validation (may be convenient for persisted\n *    queries which are validated before persisting and assumed valid during execution)\n *\n * @api\n * @param \\GraphQL\\Type\\Schema $schema\n * @param string|DocumentNode $source\n * @param mixed $rootValue\n * @param mixed $context\n * @param array|null $variableValues\n * @param string|null $operationName\n * @param callable $fieldResolver\n * @param array $validationRules\n *\n * @return ExecutionResult\n */\nstatic function executeQuery(\n    GraphQL\\Type\\Schema $schema,\n    $source,\n    $rootValue = null,\n    $context = null,\n    $variableValues = null,\n    $operationName = null,\n    callable $fieldResolver = null,\n    array $validationRules = null\n)\n\n\n\n\n/**\n * Same as executeQuery(), but requires PromiseAdapter and always returns a Promise.\n * Useful for Async PHP platforms.\n *\n * @api\n * @param PromiseAdapter $promiseAdapter\n * @param \\GraphQL\\Type\\Schema $schema\n * @param string|DocumentNode $source\n * @param mixed $rootValue\n * @param mixed $context\n * @param array|null $variableValues\n * @param string|null $operationName\n * @param callable $fieldResolver\n * @param array $validationRules\n *\n * @return Promise\n */\nstatic function promiseToExecute(\n    GraphQL\\Executor\\Promise\\PromiseAdapter $promiseAdapter,\n    GraphQL\\Type\\Schema $schema,\n    $source,\n    $rootValue = null,\n    $context = null,\n    $variableValues = null,\n    $operationName = null,\n    callable $fieldResolver = null,\n    array $validationRules = null\n)\n\n\n\n\n/**\n * Returns directives defined in GraphQL spec\n *\n * @api\n * @return Directive[]\n */\nstatic function getStandardDirectives()\n\n\n\n\n/**\n * Returns types defined in GraphQL spec\n *\n * @api\n * @return Type[]\n */\nstatic function getStandardTypes()\n\n\n\n\n/**\n * Returns standard validation rules implementing GraphQL spec\n *\n * @api\n * @return AbstractValidationRule[]\n */\nstatic function getStandardValidationRules()\n\n\n\n\nGraphQL\\Type\\Definition\\Type\n\n\nRegistry of standard GraphQL types\nand a base class for all other types.\n\n\nClass Methods:\n \n\n\n/**\n * @api\n * @return IDType\n */\nstatic function id()\n\n\n\n\n/**\n * @api\n * @return StringType\n */\nstatic function string()\n\n\n\n\n/**\n * @api\n * @return BooleanType\n */\nstatic function boolean()\n\n\n\n\n/**\n * @api\n * @return IntType\n */\nstatic function int()\n\n\n\n\n/**\n * @api\n * @return FloatType\n */\nstatic function float()\n\n\n\n\n/**\n * @api\n * @param Type|ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType|NonNull $wrappedType\n * @return ListOfType\n */\nstatic function listOf($wrappedType)\n\n\n\n\n/**\n * @api\n * @param ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType $wrappedType\n * @return NonNull\n */\nstatic function nonNull($wrappedType)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isInputType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isOutputType($type)\n\n\n\n\n/**\n * @api\n * @param $type\n * @return bool\n */\nstatic function isLeafType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isCompositeType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isAbstractType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType\n */\nstatic function getNullableType($type)\n\n\n\n\n/**\n * @api\n * @param Type $type\n * @return ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType\n */\nstatic function getNamedType($type)\n\n\n\n\nGraphQL\\Type\\Definition\\ResolveInfo\n\n\nStructure containing information useful for field resolution process.\nPassed as 3rd argument to every field resolver. See \ndocs on field resolving (data fetching)\n.\n\n\nClass Props:\n \n\n\n/**\n * The name of the field being resolved\n *\n * @api\n * @var string\n */\npublic $fieldName;\n\n/**\n * AST of all nodes referencing this field in the query.\n *\n * @api\n * @var FieldNode[]\n */\npublic $fieldNodes;\n\n/**\n * Expected return type of the field being resolved\n *\n * @api\n * @var ScalarType|ObjectType|InterfaceType|UnionType|EnumType|ListOfType|NonNull\n */\npublic $returnType;\n\n/**\n * Parent type of the field being resolved\n *\n * @api\n * @var ObjectType\n */\npublic $parentType;\n\n/**\n * Path to this field from the very root value\n *\n * @api\n * @var array\n */\npublic $path;\n\n/**\n * Instance of a schema used for execution\n *\n * @api\n * @var Schema\n */\npublic $schema;\n\n/**\n * AST of all fragments defined in query\n *\n * @api\n * @var FragmentDefinitionNode[]\n */\npublic $fragments;\n\n/**\n * Root value passed to query execution\n *\n * @api\n * @var mixed\n */\npublic $rootValue;\n\n/**\n * AST of operation definition node (query, mutation)\n *\n * @api\n * @var OperationDefinitionNode\n */\npublic $operation;\n\n/**\n * Array of variables passed to query execution\n *\n * @api\n * @var array\n */\npublic $variableValues;\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Helper method that returns names of all fields selected in query for\n * $this->fieldName up to $depth levels\n *\n * Example:\n * query MyQuery{\n * {\n *   root {\n *     id,\n *     nested {\n *      nested1\n *      nested2 {\n *        nested3\n *      }\n *     }\n *   }\n * }\n *\n * Given this ResolveInfo instance is a part of \"root\" field resolution, and $depth === 1,\n * method will return:\n * [\n *     'id' => true,\n *     'nested' => [\n *         nested1 => true,\n *         nested2 => true\n *     ]\n * ]\n *\n * Warning: this method it is a naive implementation which does not take into account\n * conditional typed fragments. So use it with care for fields of interface and union types.\n *\n * @api\n * @param int $depth How many levels to include in output\n * @return array\n */\nfunction getFieldSelection($depth = 0)\n\n\n\n\nGraphQL\\Language\\DirectiveLocation\n\n\nList of available directive locations\n\n\nClass Constants:\n \n\n\nconst QUERY = \"QUERY\";\nconst MUTATION = \"MUTATION\";\nconst SUBSCRIPTION = \"SUBSCRIPTION\";\nconst FIELD = \"FIELD\";\nconst FRAGMENT_DEFINITION = \"FRAGMENT_DEFINITION\";\nconst FRAGMENT_SPREAD = \"FRAGMENT_SPREAD\";\nconst INLINE_FRAGMENT = \"INLINE_FRAGMENT\";\nconst SCHEMA = \"SCHEMA\";\nconst SCALAR = \"SCALAR\";\nconst OBJECT = \"OBJECT\";\nconst FIELD_DEFINITION = \"FIELD_DEFINITION\";\nconst ARGUMENT_DEFINITION = \"ARGUMENT_DEFINITION\";\nconst IFACE = \"INTERFACE\";\nconst UNION = \"UNION\";\nconst ENUM = \"ENUM\";\nconst ENUM_VALUE = \"ENUM_VALUE\";\nconst INPUT_OBJECT = \"INPUT_OBJECT\";\nconst INPUT_FIELD_DEFINITION = \"INPUT_FIELD_DEFINITION\";\n\n\n\n\nGraphQL\\Type\\SchemaConfig\n\n\nSchema configuration class.\nCould be passed directly to schema constructor. List of options accepted by \ncreate\n method is\n\ndescribed in docs\n.\n\n\nUsage example:\n\n\n$config = SchemaConfig::create()\n    ->setQuery($myQueryType)\n    ->setTypeLoader($myTypeLoader);\n\n$schema = new Schema($config);\n\n\n\nClass Methods:\n \n\n\n/**\n * Converts an array of options to instance of SchemaConfig\n * (or just returns empty config when array is not passed).\n *\n * @api\n * @param array $options\n * @return SchemaConfig\n */\nstatic function create(array $options = [])\n\n\n\n\n/**\n * @api\n * @param ObjectType $query\n * @return SchemaConfig\n */\nfunction setQuery($query)\n\n\n\n\n/**\n * @api\n * @param ObjectType $mutation\n * @return SchemaConfig\n */\nfunction setMutation($mutation)\n\n\n\n\n/**\n * @api\n * @param ObjectType $subscription\n * @return SchemaConfig\n */\nfunction setSubscription($subscription)\n\n\n\n\n/**\n * @api\n * @param Type[]|callable $types\n * @return SchemaConfig\n */\nfunction setTypes($types)\n\n\n\n\n/**\n * @api\n * @param Directive[] $directives\n * @return SchemaConfig\n */\nfunction setDirectives(array $directives)\n\n\n\n\n/**\n * @api\n * @param callable $typeLoader\n * @return SchemaConfig\n */\nfunction setTypeLoader(callable $typeLoader)\n\n\n\n\n/**\n * @api\n * @return ObjectType\n */\nfunction getQuery()\n\n\n\n\n/**\n * @api\n * @return ObjectType\n */\nfunction getMutation()\n\n\n\n\n/**\n * @api\n * @return ObjectType\n */\nfunction getSubscription()\n\n\n\n\n/**\n * @api\n * @return Type[]\n */\nfunction getTypes()\n\n\n\n\n/**\n * @api\n * @return Directive[]\n */\nfunction getDirectives()\n\n\n\n\n/**\n * @api\n * @return callable\n */\nfunction getTypeLoader()\n\n\n\n\nGraphQL\\Type\\Schema\n\n\nSchema Definition (see \nrelated docs\n)\n\n\nA Schema is created by supplying the root types of each type of operation:\nquery, mutation (optional) and subscription (optional). A schema definition is\nthen supplied to the validator and executor. Usage Example:\n\n\n$schema = new GraphQL\\Type\\Schema([\n  'query' => $MyAppQueryRootType,\n  'mutation' => $MyAppMutationRootType,\n]);\n\n\n\nOr using Schema Config instance:\n\n\n$config = GraphQL\\Type\\SchemaConfig::create()\n    ->setQuery($MyAppQueryRootType)\n    ->setMutation($MyAppMutationRootType);\n\n$schema = new GraphQL\\Type\\Schema($config);\n\n\n\nClass Methods:\n \n\n\n/**\n * Schema constructor.\n *\n * @api\n * @param array|SchemaConfig $config\n */\nfunction __construct($config)\n\n\n\n\n/**\n * Returns schema query type\n *\n * @api\n * @return ObjectType\n */\nfunction getQueryType()\n\n\n\n\n/**\n * Returns schema mutation type\n *\n * @api\n * @return ObjectType|null\n */\nfunction getMutationType()\n\n\n\n\n/**\n * Returns schema subscription\n *\n * @api\n * @return ObjectType|null\n */\nfunction getSubscriptionType()\n\n\n\n\n/**\n * @api\n * @return SchemaConfig\n */\nfunction getConfig()\n\n\n\n\n/**\n * Returns array of all types in this schema. Keys of this array represent type names, values are instances\n * of corresponding type definitions\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @return Type[]\n */\nfunction getTypeMap()\n\n\n\n\n/**\n * Returns type by it's name\n *\n * @api\n * @param string $name\n * @return Type\n */\nfunction getType($name)\n\n\n\n\n/**\n * Returns all possible concrete types for given abstract type\n * (implementations for interfaces and members of union type for unions)\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @param AbstractType $abstractType\n * @return ObjectType[]\n */\nfunction getPossibleTypes(GraphQL\\Type\\Definition\\AbstractType $abstractType)\n\n\n\n\n/**\n * Returns true if object type is concrete type of given abstract type\n * (implementation for interfaces and members of union type for unions)\n *\n * @api\n * @param AbstractType $abstractType\n * @param ObjectType $possibleType\n * @return bool\n */\nfunction isPossibleType(\n    GraphQL\\Type\\Definition\\AbstractType $abstractType,\n    GraphQL\\Type\\Definition\\ObjectType $possibleType\n)\n\n\n\n\n/**\n * Returns a list of directives supported by this schema\n *\n * @api\n * @return Directive[]\n */\nfunction getDirectives()\n\n\n\n\n/**\n * Returns instance of directive by name\n *\n * @api\n * @param $name\n * @return Directive\n */\nfunction getDirective($name)\n\n\n\n\n/**\n * Validates schema.\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @return InvariantViolation[]|Error[]\n */\nfunction validate()\n\n\n\n\n/**\n * Validates schema.\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @throws InvariantViolation\n */\nfunction assertValid()\n\n\n\n\nGraphQL\\Language\\Parser\n\n\nParses string containing GraphQL query or \ntype definition\n to Abstract Syntax Tree.\n\n\nClass Methods:\n \n\n\n/**\n * Given a GraphQL source, parses it into a `GraphQL\\Language\\AST\\DocumentNode`.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * Available options:\n *\n * noLocation: boolean,\n * (By default, the parser creates AST nodes that know the location\n * in the source that they correspond to. This configuration flag\n * disables that behavior for performance or testing.)\n *\n * experimentalFragmentVariables: boolean,\n * (If enabled, the parser will understand and parse variable definitions\n * contained in a fragment definition. They'll be represented in the\n * `variableDefinitions` field of the FragmentDefinitionNode.\n *\n * The syntax is identical to normal, query-defined variables. For example:\n *\n *   fragment A($var: Boolean = false) on T  {\n *     ...\n *   }\n *\n * Note: this feature is experimental and may change or be removed in the\n * future.)\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return DocumentNode\n * @throws SyntaxError\n */\nstatic function parse($source, array $options = [])\n\n\n\n\n/**\n * Given a string containing a GraphQL value (ex. `[42]`), parse the AST for\n * that value.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Values directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: `GraphQL\\Utils\\AST::valueFromAST()`.\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return BooleanValueNode|EnumValueNode|FloatValueNode|IntValueNode|ListValueNode|ObjectValueNode|StringValueNode|VariableNode\n */\nstatic function parseValue($source, array $options = [])\n\n\n\n\n/**\n * Given a string containing a GraphQL Type (ex. `[Int!]`), parse the AST for\n * that type.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Types directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: `GraphQL\\Utils\\AST::typeFromAST()`.\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return ListTypeNode|NameNode|NonNullTypeNode\n */\nstatic function parseType($source, array $options = [])\n\n\n\n\nGraphQL\\Language\\Printer\n\n\nPrints AST to string. Capable of printing GraphQL queries and Type definition language.\nUseful for pretty-printing queries or printing back AST for logging, documentation, etc.\n\n\nUsage example:\n\n\n$query = 'query myQuery {someField}';\n$ast = GraphQL\\Language\\Parser::parse($query);\n$printed = GraphQL\\Language\\Printer::doPrint($ast);\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Prints AST to string. Capable of printing GraphQL queries and Type definition language.\n *\n * @api\n * @param Node $ast\n * @return string\n */\nstatic function doPrint($ast)\n\n\n\n\nGraphQL\\Language\\Visitor\n\n\nUtility for efficient AST traversal and modification.\n\n\nvisit()\n will walk through an AST using a depth first traversal, calling\nthe visitor's enter function at each node in the traversal, and calling the\nleave function after visiting that node and all of it's child nodes.\n\n\nBy returning different values from the enter and leave functions, the\nbehavior of the visitor can be altered, including skipping over a sub-tree of\nthe AST (by returning false), editing the AST by returning a value or null\nto remove the value, or to stop the whole traversal by returning BREAK.\n\n\nWhen using \nvisit()\n to edit an AST, the original AST will not be modified, and\na new version of the AST with the changes applied will be returned from the\nvisit function.\n\n\n$editedAST = Visitor::visit($ast, [\n  'enter' => function ($node, $key, $parent, $path, $ancestors) {\n    // return\n    //   null: no action\n    //   Visitor::skipNode(): skip visiting this node\n    //   Visitor::stop(): stop visiting altogether\n    //   Visitor::removeNode(): delete this node\n    //   any value: replace this node with the returned value\n  },\n  'leave' => function ($node, $key, $parent, $path, $ancestors) {\n    // return\n    //   null: no action\n    //   Visitor::stop(): stop visiting altogether\n    //   Visitor::removeNode(): delete this node\n    //   any value: replace this node with the returned value\n  }\n]);\n\n\n\nAlternatively to providing enter() and leave() functions, a visitor can\ninstead provide functions named the same as the \nkinds of AST nodes\n,\nor enter/leave visitors at a named key, leading to four permutations of\nvisitor API:\n\n\n1) Named visitors triggered when entering a node a specific kind.\n\n\nVisitor::visit($ast, [\n  'Kind' => function ($node) {\n    // enter the \"Kind\" node\n  }\n]);\n\n\n\n2) Named visitors that trigger upon entering and leaving a node of\n   a specific kind.\n\n\nVisitor::visit($ast, [\n  'Kind' => [\n    'enter' => function ($node) {\n      // enter the \"Kind\" node\n    }\n    'leave' => function ($node) {\n      // leave the \"Kind\" node\n    }\n  ]\n]);\n\n\n\n3) Generic visitors that trigger upon entering and leaving any node.\n\n\nVisitor::visit($ast, [\n  'enter' => function ($node) {\n    // enter any node\n  },\n  'leave' => function ($node) {\n    // leave any node\n  }\n]);\n\n\n\n4) Parallel visitors for entering and leaving nodes of a specific kind.\n\n\nVisitor::visit($ast, [\n  'enter' => [\n    'Kind' => function($node) {\n      // enter the \"Kind\" node\n    }\n  },\n  'leave' => [\n    'Kind' => function ($node) {\n      // leave the \"Kind\" node\n    }\n  ]\n]);\n\n\n\nClass Methods:\n \n\n\n/**\n * Visit the AST (see class description for details)\n *\n * @api\n * @param Node $root\n * @param array $visitor\n * @param array $keyMap\n * @return Node|mixed\n * @throws \\Exception\n */\nstatic function visit($root, $visitor, $keyMap = null)\n\n\n\n\n/**\n * Returns marker for visitor break\n *\n * @api\n * @return VisitorOperation\n */\nstatic function stop()\n\n\n\n\n/**\n * Returns marker for skipping current node\n *\n * @api\n * @return VisitorOperation\n */\nstatic function skipNode()\n\n\n\n\n/**\n * Returns marker for removing a node\n *\n * @api\n * @return VisitorOperation\n */\nstatic function removeNode()\n\n\n\n\nGraphQL\\Language\\AST\\NodeKind\n\n\nClass Constants:\n \n\n\nconst NAME = \"Name\";\nconst DOCUMENT = \"Document\";\nconst OPERATION_DEFINITION = \"OperationDefinition\";\nconst VARIABLE_DEFINITION = \"VariableDefinition\";\nconst VARIABLE = \"Variable\";\nconst SELECTION_SET = \"SelectionSet\";\nconst FIELD = \"Field\";\nconst ARGUMENT = \"Argument\";\nconst FRAGMENT_SPREAD = \"FragmentSpread\";\nconst INLINE_FRAGMENT = \"InlineFragment\";\nconst FRAGMENT_DEFINITION = \"FragmentDefinition\";\nconst INT = \"IntValue\";\nconst FLOAT = \"FloatValue\";\nconst STRING = \"StringValue\";\nconst BOOLEAN = \"BooleanValue\";\nconst ENUM = \"EnumValue\";\nconst NULL = \"NullValue\";\nconst LST = \"ListValue\";\nconst OBJECT = \"ObjectValue\";\nconst OBJECT_FIELD = \"ObjectField\";\nconst DIRECTIVE = \"Directive\";\nconst NAMED_TYPE = \"NamedType\";\nconst LIST_TYPE = \"ListType\";\nconst NON_NULL_TYPE = \"NonNullType\";\nconst SCHEMA_DEFINITION = \"SchemaDefinition\";\nconst OPERATION_TYPE_DEFINITION = \"OperationTypeDefinition\";\nconst SCALAR_TYPE_DEFINITION = \"ScalarTypeDefinition\";\nconst OBJECT_TYPE_DEFINITION = \"ObjectTypeDefinition\";\nconst FIELD_DEFINITION = \"FieldDefinition\";\nconst INPUT_VALUE_DEFINITION = \"InputValueDefinition\";\nconst INTERFACE_TYPE_DEFINITION = \"InterfaceTypeDefinition\";\nconst UNION_TYPE_DEFINITION = \"UnionTypeDefinition\";\nconst ENUM_TYPE_DEFINITION = \"EnumTypeDefinition\";\nconst ENUM_VALUE_DEFINITION = \"EnumValueDefinition\";\nconst INPUT_OBJECT_TYPE_DEFINITION = \"InputObjectTypeDefinition\";\nconst SCALAR_TYPE_EXTENSION = \"ScalarTypeExtension\";\nconst OBJECT_TYPE_EXTENSION = \"ObjectTypeExtension\";\nconst INTERFACE_TYPE_EXTENSION = \"InterfaceTypeExtension\";\nconst UNION_TYPE_EXTENSION = \"UnionTypeExtension\";\nconst ENUM_TYPE_EXTENSION = \"EnumTypeExtension\";\nconst INPUT_OBJECT_TYPE_EXTENSION = \"InputObjectTypeExtension\";\nconst DIRECTIVE_DEFINITION = \"DirectiveDefinition\";\n\n\n\n\nGraphQL\\Executor\\Executor\n\n\nImplements the \"Evaluating requests\" section of the GraphQL specification.\n\n\nClass Methods:\n \n\n\n/**\n * Executes DocumentNode against given $schema.\n *\n * Always returns ExecutionResult and never throws. All errors which occur during operation\n * execution are collected in `$result->errors`.\n *\n * @api\n * @param Schema $schema\n * @param DocumentNode $ast\n * @param $rootValue\n * @param $contextValue\n * @param array|\\ArrayAccess $variableValues\n * @param null $operationName\n * @param callable $fieldResolver\n *\n * @return ExecutionResult|Promise\n */\nstatic function execute(\n    GraphQL\\Type\\Schema $schema,\n    GraphQL\\Language\\AST\\DocumentNode $ast,\n    $rootValue = null,\n    $contextValue = null,\n    $variableValues = null,\n    $operationName = null,\n    callable $fieldResolver = null\n)\n\n\n\n\n/**\n * Same as execute(), but requires promise adapter and returns a promise which is always\n * fulfilled with an instance of ExecutionResult and never rejected.\n *\n * Useful for async PHP platforms.\n *\n * @api\n * @param PromiseAdapter $promiseAdapter\n * @param Schema $schema\n * @param DocumentNode $ast\n * @param null $rootValue\n * @param null $contextValue\n * @param null $variableValues\n * @param null $operationName\n * @param callable|null $fieldResolver\n * @return Promise\n */\nstatic function promiseToExecute(\n    GraphQL\\Executor\\Promise\\PromiseAdapter $promiseAdapter,\n    GraphQL\\Type\\Schema $schema,\n    GraphQL\\Language\\AST\\DocumentNode $ast,\n    $rootValue = null,\n    $contextValue = null,\n    $variableValues = null,\n    $operationName = null,\n    callable $fieldResolver = null\n)\n\n\n\n\nGraphQL\\Executor\\ExecutionResult\n\n\nReturned after \nquery execution\n.\nRepresents both - result of successful execution and of a failed one\n(with errors collected in \nerrors\n prop)\n\n\nCould be converted to \nspec-compliant\n\nserializable array using \ntoArray()\n\n\nClass Props:\n \n\n\n/**\n * Data collected from resolvers during query execution\n *\n * @api\n * @var array\n */\npublic $data;\n\n/**\n * Errors registered during query execution.\n *\n * If an error was caused by exception thrown in resolver, $error->getPrevious() would\n * contain original exception.\n *\n * @api\n * @var \\GraphQL\\Error\\Error[]\n */\npublic $errors;\n\n/**\n * User-defined serializable array of extensions included in serialized result.\n * Conforms to\n *\n * @api\n * @var array\n */\npublic $extensions;\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Define custom error formatting (must conform to http://facebook.github.io/graphql/#sec-Errors)\n *\n * Expected signature is: function (GraphQL\\Error\\Error $error): array\n *\n * Default formatter is \"GraphQL\\Error\\FormattedError::createFromException\"\n *\n * Expected returned value must be an array:\n * array(\n *    'message' => 'errorMessage',\n *    // ... other keys\n * );\n *\n * @api\n * @param callable $errorFormatter\n * @return $this\n */\nfunction setErrorFormatter(callable $errorFormatter)\n\n\n\n\n/**\n * Define custom logic for error handling (filtering, logging, etc).\n *\n * Expected handler signature is: function (array $errors, callable $formatter): array\n *\n * Default handler is:\n * function (array $errors, callable $formatter) {\n *     return array_map($formatter, $errors);\n * }\n *\n * @api\n * @param callable $handler\n * @return $this\n */\nfunction setErrorsHandler(callable $handler)\n\n\n\n\n/**\n * Converts GraphQL query result to spec-compliant serializable array using provided\n * errors handler and formatter.\n *\n * If debug argument is passed, output of error formatter is enriched which debugging information\n * (\"debugMessage\", \"trace\" keys depending on flags).\n *\n * $debug argument must be either bool (only adds \"debugMessage\" to result) or sum of flags from\n * GraphQL\\Error\\Debug\n *\n * @api\n * @param bool|int $debug\n * @return array\n */\nfunction toArray($debug = false)\n\n\n\n\nGraphQL\\Executor\\Promise\\PromiseAdapter\n\n\nProvides a means for integration of async PHP platforms (\nrelated docs\n)\n\n\nInterface Methods:\n \n\n\n/**\n * Return true if the value is a promise or a deferred of the underlying platform\n *\n * @api\n * @param mixed $value\n * @return bool\n */\nfunction isThenable($value)\n\n\n\n\n/**\n * Converts thenable of the underlying platform into GraphQL\\Executor\\Promise\\Promise instance\n *\n * @api\n * @param object $thenable\n * @return Promise\n */\nfunction convertThenable($thenable)\n\n\n\n\n/**\n * Accepts our Promise wrapper, extracts adopted promise out of it and executes actual `then` logic described\n * in Promises/A+ specs. Then returns new wrapped instance of GraphQL\\Executor\\Promise\\Promise.\n *\n * @api\n * @param Promise $promise\n * @param callable|null $onFulfilled\n * @param callable|null $onRejected\n *\n * @return Promise\n */\nfunction then(\n    GraphQL\\Executor\\Promise\\Promise $promise,\n    callable $onFulfilled = null,\n    callable $onRejected = null\n)\n\n\n\n\n/**\n * Creates a Promise\n *\n * Expected resolver signature:\n *     function(callable $resolve, callable $reject)\n *\n * @api\n * @param callable $resolver\n * @return Promise\n */\nfunction create(callable $resolver)\n\n\n\n\n/**\n * Creates a fulfilled Promise for a value if the value is not a promise.\n *\n * @api\n * @param mixed $value\n * @return Promise\n */\nfunction createFulfilled($value = null)\n\n\n\n\n/**\n * Creates a rejected promise for a reason if the reason is not a promise. If\n * the provided reason is a promise, then it is returned as-is.\n *\n * @api\n * @param \\Throwable $reason\n * @return Promise\n */\nfunction createRejected($reason)\n\n\n\n\n/**\n * Given an array of promises (or values), returns a promise that is fulfilled when all the\n * items in the array are fulfilled.\n *\n * @api\n * @param array $promisesOrValues Promises or values.\n * @return Promise\n */\nfunction all(array $promisesOrValues)\n\n\n\n\nGraphQL\\Validator\\DocumentValidator\n\n\nImplements the \"Validation\" section of the spec.\n\n\nValidation runs synchronously, returning an array of encountered errors, or\nan empty array if no errors were encountered and the document is valid.\n\n\nA list of specific validation rules may be provided. If not provided, the\ndefault list of rules defined by the GraphQL specification will be used.\n\n\nEach validation rule is an instance of GraphQL\\Validator\\Rules\\AbstractValidationRule\nwhich returns a visitor (see the \nGraphQL\\Language\\Visitor API\n).\n\n\nVisitor methods are expected to return an instance of \nGraphQL\\Error\\Error\n,\nor array of such instances when invalid.\n\n\nOptionally a custom TypeInfo instance may be provided. If not provided, one\nwill be created from the provided schema.\n\n\nClass Methods:\n \n\n\n/**\n * Primary method for query validation. See class description for details.\n *\n * @api\n * @param Schema $schema\n * @param DocumentNode $ast\n * @param AbstractValidationRule[]|null $rules\n * @param TypeInfo|null $typeInfo\n * @return Error[]\n */\nstatic function validate(\n    GraphQL\\Type\\Schema $schema,\n    GraphQL\\Language\\AST\\DocumentNode $ast,\n    array $rules = null,\n    GraphQL\\Utils\\TypeInfo $typeInfo = null\n)\n\n\n\n\n/**\n * Returns all global validation rules.\n *\n * @api\n * @return AbstractValidationRule[]\n */\nstatic function allRules()\n\n\n\n\n/**\n * Returns global validation rule by name. Standard rules are named by class name, so\n * example usage for such rules:\n *\n * $rule = DocumentValidator::getRule(GraphQL\\Validator\\Rules\\QueryComplexity::class);\n *\n * @api\n * @param string $name\n * @return AbstractValidationRule\n */\nstatic function getRule($name)\n\n\n\n\n/**\n * Add rule to list of global validation rules\n *\n * @api\n * @param AbstractValidationRule $rule\n */\nstatic function addRule(GraphQL\\Validator\\Rules\\AbstractValidationRule $rule)\n\n\n\n\nGraphQL\\Error\\Error\n\n\nDescribes an Error found during the parse, validate, or\nexecute phases of performing a GraphQL operation. In addition to a message\nand stack trace, it also includes information about the locations in a\nGraphQL document and/or execution result that correspond to the Error.\n\n\nWhen the error was caused by an exception thrown in resolver, original exception\nis available via \ngetPrevious()\n.\n\n\nAlso read related docs on \nerror handling\n\n\nClass extends standard PHP \n\\Exception\n, so all standard methods of base \n\\Exception\n class\nare available in addition to those listed below.\n\n\nClass Constants:\n \n\n\nconst CATEGORY_GRAPHQL = \"graphql\";\nconst CATEGORY_INTERNAL = \"internal\";\n\n\n\n\nClass Methods:\n \n\n\n/**\n * An array of locations within the source GraphQL document which correspond to this error.\n *\n * Each entry has information about `line` and `column` within source GraphQL document:\n * $location->line;\n * $location->column;\n *\n * Errors during validation often contain multiple locations, for example to\n * point out to field mentioned in multiple fragments. Errors during execution include a\n * single location, the field which produced the error.\n *\n * @api\n * @return SourceLocation[]\n */\nfunction getLocations()\n\n\n\n\n/**\n * Returns an array describing the path from the root value to the field which produced this error.\n * Only included for execution errors.\n *\n * @api\n * @return array|null\n */\nfunction getPath()\n\n\n\n\nGraphQL\\Error\\Warning\n\n\nEncapsulates warnings produced by the library.\n\n\nWarnings can be suppressed (individually or all) if required.\nAlso it is possible to override warning handler (which is \ntrigger_error()\n by default)\n\n\nClass Constants:\n \n\n\nconst WARNING_ASSIGN = 2;\nconst WARNING_CONFIG = 4;\nconst WARNING_FULL_SCHEMA_SCAN = 8;\nconst WARNING_CONFIG_DEPRECATION = 16;\nconst WARNING_NOT_A_TYPE = 32;\nconst ALL = 63;\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Sets warning handler which can intercept all system warnings.\n * When not set, trigger_error() is used to notify about warnings.\n *\n * @api\n * @param callable|null $warningHandler\n */\nstatic function setWarningHandler(callable $warningHandler = null)\n\n\n\n\n/**\n * Suppress warning by id (has no effect when custom warning handler is set)\n *\n * Usage example:\n * Warning::suppress(Warning::WARNING_NOT_A_TYPE)\n *\n * When passing true - suppresses all warnings.\n *\n * @api\n * @param bool|int $suppress\n */\nstatic function suppress($suppress = true)\n\n\n\n\n/**\n * Re-enable previously suppressed warning by id\n *\n * Usage example:\n * Warning::suppress(Warning::WARNING_NOT_A_TYPE)\n *\n * When passing true - re-enables all warnings.\n *\n * @api\n * @param bool|int $enable\n */\nstatic function enable($enable = true)\n\n\n\n\nGraphQL\\Error\\ClientAware\n\n\nThis interface is used for \ndefault error formatting\n.\n\n\nOnly errors implementing this interface (and returning true from \nisClientSafe()\n)\nwill be formatted with original error message.\n\n\nAll other errors will be formatted with generic \"Internal server error\".\n\n\nInterface Methods:\n \n\n\n/**\n * Returns true when exception message is safe to be displayed to a client.\n *\n * @api\n * @return bool\n */\nfunction isClientSafe()\n\n\n\n\n/**\n * Returns string describing a category of the error.\n *\n * Value \"graphql\" is reserved for errors produced by query parsing or validation, do not use it.\n *\n * @api\n * @return string\n */\nfunction getCategory()\n\n\n\n\nGraphQL\\Error\\Debug\n\n\nCollection of flags for \nerror debugging\n.\n\n\nClass Constants:\n \n\n\nconst INCLUDE_DEBUG_MESSAGE = 1;\nconst INCLUDE_TRACE = 2;\nconst RETHROW_INTERNAL_EXCEPTIONS = 4;\n\n\n\n\nGraphQL\\Error\\FormattedError\n\n\nThis class is used for \ndefault error formatting\n.\nIt converts PHP exceptions to \nspec-compliant errors\n\nand provides tools for error debugging.\n\n\nClass Methods:\n \n\n\n/**\n * Set default error message for internal errors formatted using createFormattedError().\n * This value can be overridden by passing 3rd argument to `createFormattedError()`.\n *\n * @api\n * @param string $msg\n */\nstatic function setInternalErrorMessage($msg)\n\n\n\n\n/**\n * Standard GraphQL error formatter. Converts any exception to array\n * conforming to GraphQL spec.\n *\n * This method only exposes exception message when exception implements ClientAware interface\n * (or when debug flags are passed).\n *\n * For a list of available debug flags see GraphQL\\Error\\Debug constants.\n *\n * @api\n * @param \\Throwable $e\n * @param bool|int $debug\n * @param string $internalErrorMessage\n * @return array\n * @throws \\Throwable\n */\nstatic function createFromException($e, $debug = false, $internalErrorMessage = null)\n\n\n\n\n/**\n * Returns error trace as serializable array\n *\n * @api\n * @param \\Throwable $error\n * @return array\n */\nstatic function toSafeTrace($error)\n\n\n\n\nGraphQL\\Server\\StandardServer\n\n\nGraphQL server compatible with both: \nexpress-graphql\n\nand \nApollo Server\n.\nUsage Example:\n\n\n$server = new StandardServer([\n  'schema' => $mySchema\n]);\n$server->handleRequest();\n\n\n\nOr using \nServerConfig\n instance:\n\n\n$config = GraphQL\\Server\\ServerConfig::create()\n    ->setSchema($mySchema)\n    ->setContext($myContext);\n\n$server = new GraphQL\\Server\\StandardServer($config);\n$server->handleRequest();\n\n\n\nSee \ndedicated section in docs\n for details.\n\n\nClass Methods:\n \n\n\n/**\n * Converts and exception to error and sends spec-compliant HTTP 500 error.\n * Useful when an exception is thrown somewhere outside of server execution context\n * (e.g. during schema instantiation).\n *\n * @api\n * @param \\Throwable $error\n * @param bool $debug\n * @param bool $exitWhenDone\n */\nstatic function send500Error($error, $debug = false, $exitWhenDone = false)\n\n\n\n\n/**\n * Creates new instance of a standard GraphQL HTTP server\n *\n * @api\n * @param ServerConfig|array $config\n */\nfunction __construct($config)\n\n\n\n\n/**\n * Parses HTTP request, executes and emits response (using standard PHP `header` function and `echo`)\n *\n * By default (when $parsedBody is not set) it uses PHP globals to parse a request.\n * It is possible to implement request parsing elsewhere (e.g. using framework Request instance)\n * and then pass it to the server.\n *\n * See `executeRequest()` if you prefer to emit response yourself\n * (e.g. using Response object of some framework)\n *\n * @api\n * @param OperationParams|OperationParams[] $parsedBody\n * @param bool $exitWhenDone\n */\nfunction handleRequest($parsedBody = null, $exitWhenDone = false)\n\n\n\n\n/**\n * Executes GraphQL operation and returns execution result\n * (or promise when promise adapter is different from SyncPromiseAdapter).\n *\n * By default (when $parsedBody is not set) it uses PHP globals to parse a request.\n * It is possible to implement request parsing elsewhere (e.g. using framework Request instance)\n * and then pass it to the server.\n *\n * PSR-7 compatible method executePsrRequest() does exactly this.\n *\n * @api\n * @param OperationParams|OperationParams[] $parsedBody\n * @return ExecutionResult|ExecutionResult[]|Promise\n * @throws InvariantViolation\n */\nfunction executeRequest($parsedBody = null)\n\n\n\n\n/**\n * Executes PSR-7 request and fulfills PSR-7 response.\n *\n * See `executePsrRequest()` if you prefer to create response yourself\n * (e.g. using specific JsonResponse instance of some framework).\n *\n * @api\n * @param ServerRequestInterface $request\n * @param ResponseInterface $response\n * @param StreamInterface $writableBodyStream\n * @return ResponseInterface|Promise\n */\nfunction processPsrRequest(\n    Psr\\Http\\Message\\ServerRequestInterface $request,\n    Psr\\Http\\Message\\ResponseInterface $response,\n    Psr\\Http\\Message\\StreamInterface $writableBodyStream\n)\n\n\n\n\n/**\n * Executes GraphQL operation and returns execution result\n * (or promise when promise adapter is different from SyncPromiseAdapter)\n *\n * @api\n * @param ServerRequestInterface $request\n * @return ExecutionResult|ExecutionResult[]|Promise\n */\nfunction executePsrRequest(Psr\\Http\\Message\\ServerRequestInterface $request)\n\n\n\n\n/**\n * Returns an instance of Server helper, which contains most of the actual logic for\n * parsing / validating / executing request (which could be re-used by other server implementations)\n *\n * @api\n * @return Helper\n */\nfunction getHelper()\n\n\n\n\nGraphQL\\Server\\ServerConfig\n\n\nServer configuration class.\nCould be passed directly to server constructor. List of options accepted by \ncreate\n method is\n\ndescribed in docs\n.\n\n\nUsage example:\n\n\n$config = GraphQL\\Server\\ServerConfig::create()\n    ->setSchema($mySchema)\n    ->setContext($myContext);\n\n$server = new GraphQL\\Server\\StandardServer($config);\n\n\n\nClass Methods:\n \n\n\n/**\n * Converts an array of options to instance of ServerConfig\n * (or just returns empty config when array is not passed).\n *\n * @api\n * @param array $config\n * @return ServerConfig\n */\nstatic function create(array $config = [])\n\n\n\n\n/**\n * @api\n * @param Schema $schema\n * @return $this\n */\nfunction setSchema(GraphQL\\Type\\Schema $schema)\n\n\n\n\n/**\n * @api\n * @param mixed|\\Closure $context\n * @return $this\n */\nfunction setContext($context)\n\n\n\n\n/**\n * @api\n * @param mixed|\\Closure $rootValue\n * @return $this\n */\nfunction setRootValue($rootValue)\n\n\n\n\n/**\n * Expects function(Throwable $e) : array\n *\n * @api\n * @param callable $errorFormatter\n * @return $this\n */\nfunction setErrorFormatter(callable $errorFormatter)\n\n\n\n\n/**\n * Expects function(array $errors, callable $formatter) : array\n *\n * @api\n * @param callable $handler\n * @return $this\n */\nfunction setErrorsHandler(callable $handler)\n\n\n\n\n/**\n * Set validation rules for this server.\n *\n * @api\n * @param array|callable\n * @return $this\n */\nfunction setValidationRules($validationRules)\n\n\n\n\n/**\n * @api\n * @param callable $fieldResolver\n * @return $this\n */\nfunction setFieldResolver(callable $fieldResolver)\n\n\n\n\n/**\n * Expects function($queryId, OperationParams $params) : string|DocumentNode\n *\n * This function must return query string or valid DocumentNode.\n *\n * @api\n * @param callable $persistentQueryLoader\n * @return $this\n */\nfunction setPersistentQueryLoader(callable $persistentQueryLoader)\n\n\n\n\n/**\n * Set response debug flags. See GraphQL\\Error\\Debug class for a list of all available flags\n *\n * @api\n * @param bool|int $set\n * @return $this\n */\nfunction setDebug($set = true)\n\n\n\n\n/**\n * Allow batching queries (disabled by default)\n *\n * @api\n * @param bool $enableBatching\n * @return $this\n */\nfunction setQueryBatching($enableBatching)\n\n\n\n\n/**\n * @api\n * @param PromiseAdapter $promiseAdapter\n * @return $this\n */\nfunction setPromiseAdapter(GraphQL\\Executor\\Promise\\PromiseAdapter $promiseAdapter)\n\n\n\n\nGraphQL\\Server\\Helper\n\n\nContains functionality that could be re-used by various server implementations\n\n\nClass Methods:\n \n\n\n/**\n * Parses HTTP request using PHP globals and returns GraphQL OperationParams\n * contained in this request. For batched requests it returns an array of OperationParams.\n *\n * This function does not check validity of these params\n * (validation is performed separately in validateOperationParams() method).\n *\n * If $readRawBodyFn argument is not provided - will attempt to read raw request body\n * from `php://input` stream.\n *\n * Internally it normalizes input to $method, $bodyParams and $queryParams and\n * calls `parseRequestParams()` to produce actual return value.\n *\n * For PSR-7 request parsing use `parsePsrRequest()` instead.\n *\n * @api\n * @param callable|null $readRawBodyFn\n * @return OperationParams|OperationParams[]\n * @throws RequestError\n */\nfunction parseHttpRequest(callable $readRawBodyFn = null)\n\n\n\n\n/**\n * Parses normalized request params and returns instance of OperationParams\n * or array of OperationParams in case of batch operation.\n *\n * Returned value is a suitable input for `executeOperation` or `executeBatch` (if array)\n *\n * @api\n * @param string $method\n * @param array $bodyParams\n * @param array $queryParams\n * @return OperationParams|OperationParams[]\n * @throws RequestError\n */\nfunction parseRequestParams($method, array $bodyParams, array $queryParams)\n\n\n\n\n/**\n * Checks validity of OperationParams extracted from HTTP request and returns an array of errors\n * if params are invalid (or empty array when params are valid)\n *\n * @api\n * @param OperationParams $params\n * @return Error[]\n */\nfunction validateOperationParams(GraphQL\\Server\\OperationParams $params)\n\n\n\n\n/**\n * Executes GraphQL operation with given server configuration and returns execution result\n * (or promise when promise adapter is different from SyncPromiseAdapter)\n *\n * @api\n * @param ServerConfig $config\n * @param OperationParams $op\n *\n * @return ExecutionResult|Promise\n */\nfunction executeOperation(GraphQL\\Server\\ServerConfig $config, GraphQL\\Server\\OperationParams $op)\n\n\n\n\n/**\n * Executes batched GraphQL operations with shared promise queue\n * (thus, effectively batching deferreds|promises of all queries at once)\n *\n * @api\n * @param ServerConfig $config\n * @param OperationParams[] $operations\n * @return ExecutionResult[]|Promise\n */\nfunction executeBatch(GraphQL\\Server\\ServerConfig $config, array $operations)\n\n\n\n\n/**\n * Send response using standard PHP `header()` and `echo`.\n *\n * @api\n * @param Promise|ExecutionResult|ExecutionResult[] $result\n * @param bool $exitWhenDone\n */\nfunction sendResponse($result, $exitWhenDone = false)\n\n\n\n\n/**\n * Converts PSR-7 request to OperationParams[]\n *\n * @api\n * @param ServerRequestInterface $request\n * @return array|Helper\n * @throws RequestError\n */\nfunction parsePsrRequest(Psr\\Http\\Message\\ServerRequestInterface $request)\n\n\n\n\n/**\n * Converts query execution result to PSR-7 response\n *\n * @api\n * @param Promise|ExecutionResult|ExecutionResult[] $result\n * @param ResponseInterface $response\n * @param StreamInterface $writableBodyStream\n * @return Promise|ResponseInterface\n */\nfunction toPsrResponse(\n    $result,\n    Psr\\Http\\Message\\ResponseInterface $response,\n    Psr\\Http\\Message\\StreamInterface $writableBodyStream\n)\n\n\n\n\nGraphQL\\Server\\OperationParams\n\n\nStructure representing parsed HTTP parameters for GraphQL operation\n\n\nClass Props:\n \n\n\n/**\n * Id of the query (when using persistent queries).\n *\n * Valid aliases (case-insensitive):\n * - id\n * - queryId\n * - documentId\n *\n * @api\n * @var string\n */\npublic $queryId;\n\n/**\n * @api\n * @var string\n */\npublic $query;\n\n/**\n * @api\n * @var string\n */\npublic $operation;\n\n/**\n * @api\n * @var array\n */\npublic $variables;\n\n\n\n\nClass Methods:\n \n\n\n/**\n * Creates an instance from given array\n *\n * @api\n * @param array $params\n * @param bool $readonly\n * @return OperationParams\n */\nstatic function create(array $params, $readonly = false)\n\n\n\n\n/**\n * @api\n * @param string $key\n * @return mixed\n */\nfunction getOriginalInput($key)\n\n\n\n\n/**\n * Indicates that operation is executed in read-only context\n * (e.g. via HTTP GET request)\n *\n * @api\n * @return bool\n */\nfunction isReadOnly()\n\n\n\n\nGraphQL\\Utils\\BuildSchema\n\n\nBuild instance of \nGraphQL\\Type\\Schema\n out of type language definition (string or parsed AST)\nSee \nsection in docs\n for details.\n\n\nClass Methods:\n \n\n\n/**\n * This takes the ast of a schema document produced by the parse function in\n * GraphQL\\Language\\Parser.\n *\n * If no schema definition is provided, then it will look for types named Query\n * and Mutation.\n *\n * Given that AST it constructs a GraphQL\\Type\\Schema. The resulting schema\n * has no resolve methods, so execution will use default resolvers.\n *\n * Accepts options as a second argument:\n *\n *    - commentDescriptions:\n *        Provide true to use preceding comments as the description.\n *\n *\n * @api\n * @param DocumentNode $ast\n * @param array $options\n * @return Schema\n * @throws Error\n */\nstatic function buildAST(GraphQL\\Language\\AST\\DocumentNode $ast, array $options = [])\n\n\n\n\n/**\n * A helper function to build a GraphQLSchema directly from a source\n * document.\n *\n * @api\n * @param DocumentNode|Source|string $source\n * @param array $options\n * @return Schema\n */\nstatic function build($source, array $options = [])\n\n\n\n\nGraphQL\\Utils\\AST\n\n\nVarious utilities dealing with AST\n\n\nClass Methods:\n \n\n\n/**\n * Convert representation of AST as an associative array to instance of GraphQL\\Language\\AST\\Node.\n *\n * For example:\n *\n * ```php\n * AST::fromArray([\n *     'kind' => 'ListValue',\n *     'values' => [\n *         ['kind' => 'StringValue', 'value' => 'my str'],\n *         ['kind' => 'StringValue', 'value' => 'my other str']\n *     ],\n *     'loc' => ['start' => 21, 'end' => 25]\n * ]);\n * ```\n *\n * Will produce instance of `ListValueNode` where `values` prop is a lazily-evaluated `NodeList`\n * returning instances of `StringValueNode` on access.\n *\n * This is a reverse operation for AST::toArray($node)\n *\n * @api\n * @param array $node\n * @return Node\n */\nstatic function fromArray(array $node)\n\n\n\n\n/**\n * Convert AST node to serializable array\n *\n * @api\n * @param Node $node\n * @return array\n */\nstatic function toArray(GraphQL\\Language\\AST\\Node $node)\n\n\n\n\n/**\n * Produces a GraphQL Value AST given a PHP value.\n *\n * Optionally, a GraphQL type may be provided, which will be used to\n * disambiguate between value primitives.\n *\n * | PHP Value     | GraphQL Value        |\n * | ------------- | -------------------- |\n * | Object        | Input Object         |\n * | Assoc Array   | Input Object         |\n * | Array         | List                 |\n * | Boolean       | Boolean              |\n * | String        | String / Enum Value  |\n * | Int           | Int                  |\n * | Float         | Int / Float          |\n * | Mixed         | Enum Value           |\n * | null          | NullValue            |\n *\n * @api\n * @param $value\n * @param InputType $type\n * @return ObjectValueNode|ListValueNode|BooleanValueNode|IntValueNode|FloatValueNode|EnumValueNode|StringValueNode|NullValueNode\n */\nstatic function astFromValue($value, GraphQL\\Type\\Definition\\InputType $type)\n\n\n\n\n/**\n * Produces a PHP value given a GraphQL Value AST.\n *\n * A GraphQL type must be provided, which will be used to interpret different\n * GraphQL Value literals.\n *\n * Returns `null` when the value could not be validly coerced according to\n * the provided type.\n *\n * | GraphQL Value        | PHP Value     |\n * | -------------------- | ------------- |\n * | Input Object         | Assoc Array   |\n * | List                 | Array         |\n * | Boolean              | Boolean       |\n * | String               | String        |\n * | Int / Float          | Int / Float   |\n * | Enum Value           | Mixed         |\n * | Null Value           | null          |\n *\n * @api\n * @param $valueNode\n * @param InputType $type\n * @param null $variables\n * @return array|null|\\stdClass\n * @throws \\Exception\n */\nstatic function valueFromAST($valueNode, GraphQL\\Type\\Definition\\InputType $type, $variables = null)\n\n\n\n\n/**\n * Produces a PHP value given a GraphQL Value AST.\n *\n * Unlike `valueFromAST()`, no type is provided. The resulting JavaScript value\n * will reflect the provided GraphQL value AST.\n *\n * | GraphQL Value        | PHP Value     |\n * | -------------------- | ------------- |\n * | Input Object         | Assoc Array   |\n * | List                 | Array         |\n * | Boolean              | Boolean       |\n * | String               | String        |\n * | Int / Float          | Int / Float   |\n * | Enum                 | Mixed         |\n * | Null                 | null          |\n *\n * @api\n * @param Node $valueNode\n * @param array|null $variables\n * @return mixed\n * @throws \\Exception\n */\nstatic function valueFromASTUntyped($valueNode, array $variables = null)\n\n\n\n\n/**\n * Returns type definition for given AST Type node\n *\n * @api\n * @param Schema $schema\n * @param NamedTypeNode|ListTypeNode|NonNullTypeNode $inputTypeNode\n * @return Type\n * @throws \\Exception\n */\nstatic function typeFromAST(GraphQL\\Type\\Schema $schema, $inputTypeNode)\n\n\n\n\n/**\n * Returns operation type (\"query\", \"mutation\" or \"subscription\") given a document and operation name\n *\n * @api\n * @param DocumentNode $document\n * @param string $operationName\n * @return bool\n */\nstatic function getOperation(GraphQL\\Language\\AST\\DocumentNode $document, $operationName = null)\n\n\n\n\nGraphQL\\Utils\\SchemaPrinter\n\n\nGiven an instance of Schema, prints it in GraphQL type language.\n\n\nClass Methods:\n \n\n\n/**\n * Accepts options as a second argument:\n *\n *    - commentDescriptions:\n *        Provide true to use preceding comments as the description.\n * @api\n * @param Schema $schema\n * @return string\n */\nstatic function doPrint(GraphQL\\Type\\Schema $schema, array $options = [])\n\n\n\n\n/**\n * @api\n * @param Schema $schema\n * @return string\n */\nstatic function printIntrosepctionSchema(GraphQL\\Type\\Schema $schema, array $options = [])",
             "title": "Class Reference"
         },
         {
@@ -502,7 +497,7 @@
         },
         {
             "location": "/reference/#graphqltypedefinitiontype",
-            "text": "Registry of standard GraphQL types\nand a base class for all other types.  Class Methods:    /**\n * @api\n * @return IDType\n */\nstatic function id()  /**\n * @api\n * @return StringType\n */\nstatic function string()  /**\n * @api\n * @return BooleanType\n */\nstatic function boolean()  /**\n * @api\n * @return IntType\n */\nstatic function int()  /**\n * @api\n * @return FloatType\n */\nstatic function float()  /**\n * @api\n * @param ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType|NonNull $wrappedType\n * @return ListOfType\n */\nstatic function listOf($wrappedType)  /**\n * @api\n * @param ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType $wrappedType\n * @return NonNull\n */\nstatic function nonNull($wrappedType)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isInputType($type)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isOutputType($type)  /**\n * @api\n * @param $type\n * @return bool\n */\nstatic function isLeafType($type)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isCompositeType($type)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isAbstractType($type)  /**\n * @api\n * @param Type $type\n * @return ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType\n */\nstatic function getNullableType($type)  /**\n * @api\n * @param Type $type\n * @return ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType\n */\nstatic function getNamedType($type)",
+            "text": "Registry of standard GraphQL types\nand a base class for all other types.  Class Methods:    /**\n * @api\n * @return IDType\n */\nstatic function id()  /**\n * @api\n * @return StringType\n */\nstatic function string()  /**\n * @api\n * @return BooleanType\n */\nstatic function boolean()  /**\n * @api\n * @return IntType\n */\nstatic function int()  /**\n * @api\n * @return FloatType\n */\nstatic function float()  /**\n * @api\n * @param Type|ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType|NonNull $wrappedType\n * @return ListOfType\n */\nstatic function listOf($wrappedType)  /**\n * @api\n * @param ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType $wrappedType\n * @return NonNull\n */\nstatic function nonNull($wrappedType)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isInputType($type)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isOutputType($type)  /**\n * @api\n * @param $type\n * @return bool\n */\nstatic function isLeafType($type)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isCompositeType($type)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isAbstractType($type)  /**\n * @api\n * @param Type $type\n * @return bool\n */\nstatic function isType($type)  /**\n * @api\n * @param Type $type\n * @return ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType|ListOfType\n */\nstatic function getNullableType($type)  /**\n * @api\n * @param Type $type\n * @return ObjectType|InterfaceType|UnionType|ScalarType|InputObjectType|EnumType\n */\nstatic function getNamedType($type)",
             "title": "GraphQL\\Type\\Definition\\Type"
         },
         {
@@ -511,23 +506,23 @@
             "title": "GraphQL\\Type\\Definition\\ResolveInfo"
         },
         {
-            "location": "/reference/#graphqltypedefinitiondirectivelocation",
-            "text": "List of available directive locations  Class Constants:    const IFACE = \"INTERFACE\";\nconst SUBSCRIPTION = \"SUBSCRIPTION\";\nconst FRAGMENT_SPREAD = \"FRAGMENT_SPREAD\";\nconst QUERY = \"QUERY\";\nconst MUTATION = \"MUTATION\";\nconst FRAGMENT_DEFINITION = \"FRAGMENT_DEFINITION\";\nconst INPUT_OBJECT = \"INPUT_OBJECT\";\nconst INLINE_FRAGMENT = \"INLINE_FRAGMENT\";\nconst UNION = \"UNION\";\nconst SCALAR = \"SCALAR\";\nconst FIELD_DEFINITION = \"FIELD_DEFINITION\";\nconst ARGUMENT_DEFINITION = \"ARGUMENT_DEFINITION\";\nconst ENUM = \"ENUM\";\nconst OBJECT = \"OBJECT\";\nconst ENUM_VALUE = \"ENUM_VALUE\";\nconst FIELD = \"FIELD\";\nconst SCHEMA = \"SCHEMA\";\nconst INPUT_FIELD_DEFINITION = \"INPUT_FIELD_DEFINITION\";",
-            "title": "GraphQL\\Type\\Definition\\DirectiveLocation"
+            "location": "/reference/#graphqllanguagedirectivelocation",
+            "text": "List of available directive locations  Class Constants:    const QUERY = \"QUERY\";\nconst MUTATION = \"MUTATION\";\nconst SUBSCRIPTION = \"SUBSCRIPTION\";\nconst FIELD = \"FIELD\";\nconst FRAGMENT_DEFINITION = \"FRAGMENT_DEFINITION\";\nconst FRAGMENT_SPREAD = \"FRAGMENT_SPREAD\";\nconst INLINE_FRAGMENT = \"INLINE_FRAGMENT\";\nconst SCHEMA = \"SCHEMA\";\nconst SCALAR = \"SCALAR\";\nconst OBJECT = \"OBJECT\";\nconst FIELD_DEFINITION = \"FIELD_DEFINITION\";\nconst ARGUMENT_DEFINITION = \"ARGUMENT_DEFINITION\";\nconst IFACE = \"INTERFACE\";\nconst UNION = \"UNION\";\nconst ENUM = \"ENUM\";\nconst ENUM_VALUE = \"ENUM_VALUE\";\nconst INPUT_OBJECT = \"INPUT_OBJECT\";\nconst INPUT_FIELD_DEFINITION = \"INPUT_FIELD_DEFINITION\";",
+            "title": "GraphQL\\Language\\DirectiveLocation"
         },
         {
             "location": "/reference/#graphqltypeschemaconfig",
-            "text": "Schema configuration class.\nCould be passed directly to schema constructor. List of options accepted by  create  method is described in docs .  Usage example:  $config = SchemaConfig::create()\n    ->setQuery($myQueryType)\n    ->setTypeLoader($myTypeLoader);\n\n$schema = new Schema($config);  Class Methods:    /**\n * Converts an array of options to instance of SchemaConfig\n * (or just returns empty config when array is not passed).\n *\n * @api\n * @param array $options\n * @return SchemaConfig\n */\nstatic function create(array $options = [])  /**\n * @api\n * @param ObjectType $query\n * @return SchemaConfig\n */\nfunction setQuery(GraphQL\\Type\\Definition\\ObjectType $query)  /**\n * @api\n * @param ObjectType $mutation\n * @return SchemaConfig\n */\nfunction setMutation(GraphQL\\Type\\Definition\\ObjectType $mutation)  /**\n * @api\n * @param ObjectType $subscription\n * @return SchemaConfig\n */\nfunction setSubscription(GraphQL\\Type\\Definition\\ObjectType $subscription)  /**\n * @api\n * @param Type[]|callable $types\n * @return SchemaConfig\n */\nfunction setTypes($types)  /**\n * @api\n * @param Directive[] $directives\n * @return SchemaConfig\n */\nfunction setDirectives(array $directives)  /**\n * @api\n * @param callable $typeLoader\n * @return SchemaConfig\n */\nfunction setTypeLoader(callable $typeLoader)  /**\n * @api\n * @return ObjectType\n */\nfunction getQuery()  /**\n * @api\n * @return ObjectType\n */\nfunction getMutation()  /**\n * @api\n * @return ObjectType\n */\nfunction getSubscription()  /**\n * @api\n * @return Type[]\n */\nfunction getTypes()  /**\n * @api\n * @return Directive[]\n */\nfunction getDirectives()  /**\n * @api\n * @return callable\n */\nfunction getTypeLoader()",
+            "text": "Schema configuration class.\nCould be passed directly to schema constructor. List of options accepted by  create  method is described in docs .  Usage example:  $config = SchemaConfig::create()\n    ->setQuery($myQueryType)\n    ->setTypeLoader($myTypeLoader);\n\n$schema = new Schema($config);  Class Methods:    /**\n * Converts an array of options to instance of SchemaConfig\n * (or just returns empty config when array is not passed).\n *\n * @api\n * @param array $options\n * @return SchemaConfig\n */\nstatic function create(array $options = [])  /**\n * @api\n * @param ObjectType $query\n * @return SchemaConfig\n */\nfunction setQuery($query)  /**\n * @api\n * @param ObjectType $mutation\n * @return SchemaConfig\n */\nfunction setMutation($mutation)  /**\n * @api\n * @param ObjectType $subscription\n * @return SchemaConfig\n */\nfunction setSubscription($subscription)  /**\n * @api\n * @param Type[]|callable $types\n * @return SchemaConfig\n */\nfunction setTypes($types)  /**\n * @api\n * @param Directive[] $directives\n * @return SchemaConfig\n */\nfunction setDirectives(array $directives)  /**\n * @api\n * @param callable $typeLoader\n * @return SchemaConfig\n */\nfunction setTypeLoader(callable $typeLoader)  /**\n * @api\n * @return ObjectType\n */\nfunction getQuery()  /**\n * @api\n * @return ObjectType\n */\nfunction getMutation()  /**\n * @api\n * @return ObjectType\n */\nfunction getSubscription()  /**\n * @api\n * @return Type[]\n */\nfunction getTypes()  /**\n * @api\n * @return Directive[]\n */\nfunction getDirectives()  /**\n * @api\n * @return callable\n */\nfunction getTypeLoader()",
             "title": "GraphQL\\Type\\SchemaConfig"
         },
         {
             "location": "/reference/#graphqltypeschema",
-            "text": "Schema Definition (see  related docs )  A Schema is created by supplying the root types of each type of operation:\nquery, mutation (optional) and subscription (optional). A schema definition is\nthen supplied to the validator and executor. Usage Example:  $schema = new GraphQL\\Type\\Schema([\n  'query' => $MyAppQueryRootType,\n  'mutation' => $MyAppMutationRootType,\n]);  Or using Schema Config instance:  $config = GraphQL\\Type\\SchemaConfig::create()\n    ->setQuery($MyAppQueryRootType)\n    ->setMutation($MyAppMutationRootType);\n\n$schema = new GraphQL\\Type\\Schema($config);  Class Methods:    /**\n * Schema constructor.\n *\n * @api\n * @param array|SchemaConfig $config\n */\nfunction __construct($config)  /**\n * Returns schema query type\n *\n * @api\n * @return ObjectType\n */\nfunction getQueryType()  /**\n * Returns schema mutation type\n *\n * @api\n * @return ObjectType|null\n */\nfunction getMutationType()  /**\n * Returns schema subscription\n *\n * @api\n * @return ObjectType|null\n */\nfunction getSubscriptionType()  /**\n * @api\n * @return SchemaConfig\n */\nfunction getConfig()  /**\n * Returns array of all types in this schema. Keys of this array represent type names, values are instances\n * of corresponding type definitions\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @return Type[]\n */\nfunction getTypeMap()  /**\n * Returns type by it's name\n *\n * @api\n * @param string $name\n * @return Type\n */\nfunction getType($name)  /**\n * Returns all possible concrete types for given abstract type\n * (implementations for interfaces and members of union type for unions)\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @param AbstractType $abstractType\n * @return ObjectType[]\n */\nfunction getPossibleTypes(GraphQL\\Type\\Definition\\AbstractType $abstractType)  /**\n * Returns true if object type is concrete type of given abstract type\n * (implementation for interfaces and members of union type for unions)\n *\n * @api\n * @param AbstractType $abstractType\n * @param ObjectType $possibleType\n * @return bool\n */\nfunction isPossibleType(\n    GraphQL\\Type\\Definition\\AbstractType $abstractType,\n    GraphQL\\Type\\Definition\\ObjectType $possibleType\n)  /**\n * Returns a list of directives supported by this schema\n *\n * @api\n * @return Directive[]\n */\nfunction getDirectives()  /**\n * Returns instance of directive by name\n *\n * @api\n * @param $name\n * @return Directive\n */\nfunction getDirective($name)  /**\n * Validates schema.\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @throws InvariantViolation\n */\nfunction assertValid()",
+            "text": "Schema Definition (see  related docs )  A Schema is created by supplying the root types of each type of operation:\nquery, mutation (optional) and subscription (optional). A schema definition is\nthen supplied to the validator and executor. Usage Example:  $schema = new GraphQL\\Type\\Schema([\n  'query' => $MyAppQueryRootType,\n  'mutation' => $MyAppMutationRootType,\n]);  Or using Schema Config instance:  $config = GraphQL\\Type\\SchemaConfig::create()\n    ->setQuery($MyAppQueryRootType)\n    ->setMutation($MyAppMutationRootType);\n\n$schema = new GraphQL\\Type\\Schema($config);  Class Methods:    /**\n * Schema constructor.\n *\n * @api\n * @param array|SchemaConfig $config\n */\nfunction __construct($config)  /**\n * Returns schema query type\n *\n * @api\n * @return ObjectType\n */\nfunction getQueryType()  /**\n * Returns schema mutation type\n *\n * @api\n * @return ObjectType|null\n */\nfunction getMutationType()  /**\n * Returns schema subscription\n *\n * @api\n * @return ObjectType|null\n */\nfunction getSubscriptionType()  /**\n * @api\n * @return SchemaConfig\n */\nfunction getConfig()  /**\n * Returns array of all types in this schema. Keys of this array represent type names, values are instances\n * of corresponding type definitions\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @return Type[]\n */\nfunction getTypeMap()  /**\n * Returns type by it's name\n *\n * @api\n * @param string $name\n * @return Type\n */\nfunction getType($name)  /**\n * Returns all possible concrete types for given abstract type\n * (implementations for interfaces and members of union type for unions)\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @param AbstractType $abstractType\n * @return ObjectType[]\n */\nfunction getPossibleTypes(GraphQL\\Type\\Definition\\AbstractType $abstractType)  /**\n * Returns true if object type is concrete type of given abstract type\n * (implementation for interfaces and members of union type for unions)\n *\n * @api\n * @param AbstractType $abstractType\n * @param ObjectType $possibleType\n * @return bool\n */\nfunction isPossibleType(\n    GraphQL\\Type\\Definition\\AbstractType $abstractType,\n    GraphQL\\Type\\Definition\\ObjectType $possibleType\n)  /**\n * Returns a list of directives supported by this schema\n *\n * @api\n * @return Directive[]\n */\nfunction getDirectives()  /**\n * Returns instance of directive by name\n *\n * @api\n * @param $name\n * @return Directive\n */\nfunction getDirective($name)  /**\n * Validates schema.\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @return InvariantViolation[]|Error[]\n */\nfunction validate()  /**\n * Validates schema.\n *\n * This operation requires full schema scan. Do not use in production environment.\n *\n * @api\n * @throws InvariantViolation\n */\nfunction assertValid()",
             "title": "GraphQL\\Type\\Schema"
         },
         {
             "location": "/reference/#graphqllanguageparser",
-            "text": "Parses string containing GraphQL query or  type definition  to Abstract Syntax Tree.  Class Methods:    /**\n * Given a GraphQL source, parses it into a `GraphQL\\Language\\AST\\DocumentNode`.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * Available options:\n *\n * noLocation: boolean,\n * (By default, the parser creates AST nodes that know the location\n * in the source that they correspond to. This configuration flag\n * disables that behavior for performance or testing.)\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return DocumentNode\n */\nstatic function parse($source, array $options = [])  /**\n * Given a string containing a GraphQL value (ex. `[42]`), parse the AST for\n * that value.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Values directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: `GraphQL\\Utils\\AST::valueFromAST()`.\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return BooleanValueNode|EnumValueNode|FloatValueNode|IntValueNode|ListValueNode|ObjectValueNode|StringValueNode|VariableNode\n */\nstatic function parseValue($source, array $options = [])  /**\n * Given a string containing a GraphQL Type (ex. `[Int!]`), parse the AST for\n * that type.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Types directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: `GraphQL\\Utils\\AST::typeFromAST()`.\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return ListTypeNode|NameNode|NonNullTypeNode\n */\nstatic function parseType($source, array $options = [])",
+            "text": "Parses string containing GraphQL query or  type definition  to Abstract Syntax Tree.  Class Methods:    /**\n * Given a GraphQL source, parses it into a `GraphQL\\Language\\AST\\DocumentNode`.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * Available options:\n *\n * noLocation: boolean,\n * (By default, the parser creates AST nodes that know the location\n * in the source that they correspond to. This configuration flag\n * disables that behavior for performance or testing.)\n *\n * experimentalFragmentVariables: boolean,\n * (If enabled, the parser will understand and parse variable definitions\n * contained in a fragment definition. They'll be represented in the\n * `variableDefinitions` field of the FragmentDefinitionNode.\n *\n * The syntax is identical to normal, query-defined variables. For example:\n *\n *   fragment A($var: Boolean = false) on T  {\n *     ...\n *   }\n *\n * Note: this feature is experimental and may change or be removed in the\n * future.)\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return DocumentNode\n * @throws SyntaxError\n */\nstatic function parse($source, array $options = [])  /**\n * Given a string containing a GraphQL value (ex. `[42]`), parse the AST for\n * that value.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Values directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: `GraphQL\\Utils\\AST::valueFromAST()`.\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return BooleanValueNode|EnumValueNode|FloatValueNode|IntValueNode|ListValueNode|ObjectValueNode|StringValueNode|VariableNode\n */\nstatic function parseValue($source, array $options = [])  /**\n * Given a string containing a GraphQL Type (ex. `[Int!]`), parse the AST for\n * that type.\n * Throws `GraphQL\\Error\\SyntaxError` if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Types directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: `GraphQL\\Utils\\AST::typeFromAST()`.\n *\n * @api\n * @param Source|string $source\n * @param array $options\n * @return ListTypeNode|NameNode|NonNullTypeNode\n */\nstatic function parseType($source, array $options = [])",
             "title": "GraphQL\\Language\\Parser"
         },
         {
@@ -542,7 +537,7 @@
         },
         {
             "location": "/reference/#graphqllanguageastnodekind",
-            "text": "Class Constants:    const NAME = \"Name\";\nconst DOCUMENT = \"Document\";\nconst OPERATION_DEFINITION = \"OperationDefinition\";\nconst VARIABLE_DEFINITION = \"VariableDefinition\";\nconst VARIABLE = \"Variable\";\nconst SELECTION_SET = \"SelectionSet\";\nconst FIELD = \"Field\";\nconst ARGUMENT = \"Argument\";\nconst FRAGMENT_SPREAD = \"FragmentSpread\";\nconst INLINE_FRAGMENT = \"InlineFragment\";\nconst FRAGMENT_DEFINITION = \"FragmentDefinition\";\nconst INT = \"IntValue\";\nconst FLOAT = \"FloatValue\";\nconst STRING = \"StringValue\";\nconst BOOLEAN = \"BooleanValue\";\nconst ENUM = \"EnumValue\";\nconst NULL = \"NullValue\";\nconst LST = \"ListValue\";\nconst OBJECT = \"ObjectValue\";\nconst OBJECT_FIELD = \"ObjectField\";\nconst DIRECTIVE = \"Directive\";\nconst NAMED_TYPE = \"NamedType\";\nconst LIST_TYPE = \"ListType\";\nconst NON_NULL_TYPE = \"NonNullType\";\nconst SCHEMA_DEFINITION = \"SchemaDefinition\";\nconst OPERATION_TYPE_DEFINITION = \"OperationTypeDefinition\";\nconst SCALAR_TYPE_DEFINITION = \"ScalarTypeDefinition\";\nconst OBJECT_TYPE_DEFINITION = \"ObjectTypeDefinition\";\nconst FIELD_DEFINITION = \"FieldDefinition\";\nconst INPUT_VALUE_DEFINITION = \"InputValueDefinition\";\nconst INTERFACE_TYPE_DEFINITION = \"InterfaceTypeDefinition\";\nconst UNION_TYPE_DEFINITION = \"UnionTypeDefinition\";\nconst ENUM_TYPE_DEFINITION = \"EnumTypeDefinition\";\nconst ENUM_VALUE_DEFINITION = \"EnumValueDefinition\";\nconst INPUT_OBJECT_TYPE_DEFINITION = \"InputObjectTypeDefinition\";\nconst TYPE_EXTENSION_DEFINITION = \"TypeExtensionDefinition\";\nconst DIRECTIVE_DEFINITION = \"DirectiveDefinition\";",
+            "text": "Class Constants:    const NAME = \"Name\";\nconst DOCUMENT = \"Document\";\nconst OPERATION_DEFINITION = \"OperationDefinition\";\nconst VARIABLE_DEFINITION = \"VariableDefinition\";\nconst VARIABLE = \"Variable\";\nconst SELECTION_SET = \"SelectionSet\";\nconst FIELD = \"Field\";\nconst ARGUMENT = \"Argument\";\nconst FRAGMENT_SPREAD = \"FragmentSpread\";\nconst INLINE_FRAGMENT = \"InlineFragment\";\nconst FRAGMENT_DEFINITION = \"FragmentDefinition\";\nconst INT = \"IntValue\";\nconst FLOAT = \"FloatValue\";\nconst STRING = \"StringValue\";\nconst BOOLEAN = \"BooleanValue\";\nconst ENUM = \"EnumValue\";\nconst NULL = \"NullValue\";\nconst LST = \"ListValue\";\nconst OBJECT = \"ObjectValue\";\nconst OBJECT_FIELD = \"ObjectField\";\nconst DIRECTIVE = \"Directive\";\nconst NAMED_TYPE = \"NamedType\";\nconst LIST_TYPE = \"ListType\";\nconst NON_NULL_TYPE = \"NonNullType\";\nconst SCHEMA_DEFINITION = \"SchemaDefinition\";\nconst OPERATION_TYPE_DEFINITION = \"OperationTypeDefinition\";\nconst SCALAR_TYPE_DEFINITION = \"ScalarTypeDefinition\";\nconst OBJECT_TYPE_DEFINITION = \"ObjectTypeDefinition\";\nconst FIELD_DEFINITION = \"FieldDefinition\";\nconst INPUT_VALUE_DEFINITION = \"InputValueDefinition\";\nconst INTERFACE_TYPE_DEFINITION = \"InterfaceTypeDefinition\";\nconst UNION_TYPE_DEFINITION = \"UnionTypeDefinition\";\nconst ENUM_TYPE_DEFINITION = \"EnumTypeDefinition\";\nconst ENUM_VALUE_DEFINITION = \"EnumValueDefinition\";\nconst INPUT_OBJECT_TYPE_DEFINITION = \"InputObjectTypeDefinition\";\nconst SCALAR_TYPE_EXTENSION = \"ScalarTypeExtension\";\nconst OBJECT_TYPE_EXTENSION = \"ObjectTypeExtension\";\nconst INTERFACE_TYPE_EXTENSION = \"InterfaceTypeExtension\";\nconst UNION_TYPE_EXTENSION = \"UnionTypeExtension\";\nconst ENUM_TYPE_EXTENSION = \"EnumTypeExtension\";\nconst INPUT_OBJECT_TYPE_EXTENSION = \"InputObjectTypeExtension\";\nconst DIRECTIVE_DEFINITION = \"DirectiveDefinition\";",
             "title": "GraphQL\\Language\\AST\\NodeKind"
         },
         {
@@ -572,7 +567,7 @@
         },
         {
             "location": "/reference/#graphqlerrorwarning",
-            "text": "Encapsulates warnings produced by the library.  Warnings can be suppressed (individually or all) if required.\nAlso it is possible to override warning handler (which is  trigger_error()  by default)  Class Constants:    const WARNING_NAME = 1;\nconst WARNING_ASSIGN = 2;\nconst WARNING_CONFIG = 4;\nconst WARNING_FULL_SCHEMA_SCAN = 8;\nconst WARNING_CONFIG_DEPRECATION = 16;\nconst WARNING_NOT_A_TYPE = 32;\nconst ALL = 63;  Class Methods:    /**\n * Sets warning handler which can intercept all system warnings.\n * When not set, trigger_error() is used to notify about warnings.\n *\n * @api\n * @param callable|null $warningHandler\n */\nstatic function setWarningHandler(callable $warningHandler = null)  /**\n * Suppress warning by id (has no effect when custom warning handler is set)\n *\n * Usage example:\n * Warning::suppress(Warning::WARNING_NOT_A_TYPE)\n *\n * When passing true - suppresses all warnings.\n *\n * @api\n * @param bool|int $suppress\n */\nstatic function suppress($suppress = false)  /**\n * Re-enable previously suppressed warning by id\n *\n * Usage example:\n * Warning::suppress(Warning::WARNING_NOT_A_TYPE)\n *\n * When passing true - re-enables all warnings.\n *\n * @api\n * @param bool|int $enable\n */\nstatic function enable($enable = false)",
+            "text": "Encapsulates warnings produced by the library.  Warnings can be suppressed (individually or all) if required.\nAlso it is possible to override warning handler (which is  trigger_error()  by default)  Class Constants:    const WARNING_ASSIGN = 2;\nconst WARNING_CONFIG = 4;\nconst WARNING_FULL_SCHEMA_SCAN = 8;\nconst WARNING_CONFIG_DEPRECATION = 16;\nconst WARNING_NOT_A_TYPE = 32;\nconst ALL = 63;  Class Methods:    /**\n * Sets warning handler which can intercept all system warnings.\n * When not set, trigger_error() is used to notify about warnings.\n *\n * @api\n * @param callable|null $warningHandler\n */\nstatic function setWarningHandler(callable $warningHandler = null)  /**\n * Suppress warning by id (has no effect when custom warning handler is set)\n *\n * Usage example:\n * Warning::suppress(Warning::WARNING_NOT_A_TYPE)\n *\n * When passing true - suppresses all warnings.\n *\n * @api\n * @param bool|int $suppress\n */\nstatic function suppress($suppress = true)  /**\n * Re-enable previously suppressed warning by id\n *\n * Usage example:\n * Warning::suppress(Warning::WARNING_NOT_A_TYPE)\n *\n * When passing true - re-enables all warnings.\n *\n * @api\n * @param bool|int $enable\n */\nstatic function enable($enable = true)",
             "title": "GraphQL\\Error\\Warning"
         },
         {
@@ -597,7 +592,7 @@
         },
         {
             "location": "/reference/#graphqlserverserverconfig",
-            "text": "Server configuration class.\nCould be passed directly to server constructor. List of options accepted by  create  method is described in docs .  Usage example:  $config = GraphQL\\Server\\ServerConfig::create()\n    ->setSchema($mySchema)\n    ->setContext($myContext);\n\n$server = new GraphQL\\Server\\StandardServer($config);  Class Methods:    /**\n * Converts an array of options to instance of ServerConfig\n * (or just returns empty config when array is not passed).\n *\n * @api\n * @param array $config\n * @return ServerConfig\n */\nstatic function create(array $config = [])  /**\n * @api\n * @param Schema $schema\n * @return $this\n */\nfunction setSchema(GraphQL\\Type\\Schema $schema)  /**\n * @api\n * @param mixed|\\Closure $context\n * @return $this\n */\nfunction setContext($context)  /**\n * @api\n * @param mixed|\\Closure $rootValue\n * @return $this\n */\nfunction setRootValue($rootValue)  /**\n * Expects function(Throwable $e) : array\n *\n * @api\n * @param callable $errorFormatter\n * @return $this\n */\nfunction setErrorFormatter(callable $errorFormatter)  /**\n * Expects function(array $errors, callable $formatter) : array\n *\n * @api\n * @param callable $handler\n * @return $this\n */\nfunction setErrorsHandler(callable $handler)  /**\n * Set validation rules for this server.\n *\n * @api\n * @param array|callable\n * @return $this\n */\nfunction setValidationRules($validationRules)  /**\n * @api\n * @param callable $fieldResolver\n * @return $this\n */\nfunction setFieldResolver(callable $fieldResolver)  /**\n * Expects function($queryId, OperationParams $params) : string|DocumentNode\n *\n * This function must return query string or valid DocumentNode.\n *\n * @api\n * @param callable $persistentQueryLoader\n * @return $this\n */\nfunction setPersistentQueryLoader(callable $persistentQueryLoader)  /**\n * Set response debug flags. See GraphQL\\Error\\Debug class for a list of all available flags\n *\n * @api\n * @param bool|int $set\n * @return $this\n */\nfunction setDebug($set = false)  /**\n * Allow batching queries (disabled by default)\n *\n * @api\n * @param bool $enableBatching\n * @return $this\n */\nfunction setQueryBatching($enableBatching)  /**\n * @api\n * @param PromiseAdapter $promiseAdapter\n * @return $this\n */\nfunction setPromiseAdapter(GraphQL\\Executor\\Promise\\PromiseAdapter $promiseAdapter)",
+            "text": "Server configuration class.\nCould be passed directly to server constructor. List of options accepted by  create  method is described in docs .  Usage example:  $config = GraphQL\\Server\\ServerConfig::create()\n    ->setSchema($mySchema)\n    ->setContext($myContext);\n\n$server = new GraphQL\\Server\\StandardServer($config);  Class Methods:    /**\n * Converts an array of options to instance of ServerConfig\n * (or just returns empty config when array is not passed).\n *\n * @api\n * @param array $config\n * @return ServerConfig\n */\nstatic function create(array $config = [])  /**\n * @api\n * @param Schema $schema\n * @return $this\n */\nfunction setSchema(GraphQL\\Type\\Schema $schema)  /**\n * @api\n * @param mixed|\\Closure $context\n * @return $this\n */\nfunction setContext($context)  /**\n * @api\n * @param mixed|\\Closure $rootValue\n * @return $this\n */\nfunction setRootValue($rootValue)  /**\n * Expects function(Throwable $e) : array\n *\n * @api\n * @param callable $errorFormatter\n * @return $this\n */\nfunction setErrorFormatter(callable $errorFormatter)  /**\n * Expects function(array $errors, callable $formatter) : array\n *\n * @api\n * @param callable $handler\n * @return $this\n */\nfunction setErrorsHandler(callable $handler)  /**\n * Set validation rules for this server.\n *\n * @api\n * @param array|callable\n * @return $this\n */\nfunction setValidationRules($validationRules)  /**\n * @api\n * @param callable $fieldResolver\n * @return $this\n */\nfunction setFieldResolver(callable $fieldResolver)  /**\n * Expects function($queryId, OperationParams $params) : string|DocumentNode\n *\n * This function must return query string or valid DocumentNode.\n *\n * @api\n * @param callable $persistentQueryLoader\n * @return $this\n */\nfunction setPersistentQueryLoader(callable $persistentQueryLoader)  /**\n * Set response debug flags. See GraphQL\\Error\\Debug class for a list of all available flags\n *\n * @api\n * @param bool|int $set\n * @return $this\n */\nfunction setDebug($set = true)  /**\n * Allow batching queries (disabled by default)\n *\n * @api\n * @param bool $enableBatching\n * @return $this\n */\nfunction setQueryBatching($enableBatching)  /**\n * @api\n * @param PromiseAdapter $promiseAdapter\n * @return $this\n */\nfunction setPromiseAdapter(GraphQL\\Executor\\Promise\\PromiseAdapter $promiseAdapter)",
             "title": "GraphQL\\Server\\ServerConfig"
         },
         {
@@ -612,17 +607,17 @@
         },
         {
             "location": "/reference/#graphqlutilsbuildschema",
-            "text": "Build instance of  GraphQL\\Type\\Schema  out of type language definition (string or parsed AST)\nSee  section in docs  for details.  Class Methods:    /**\n * This takes the ast of a schema document produced by the parse function in\n * GraphQL\\Language\\Parser.\n *\n * If no schema definition is provided, then it will look for types named Query\n * and Mutation.\n *\n * Given that AST it constructs a GraphQL\\Type\\Schema. The resulting schema\n * has no resolve methods, so execution will use default resolvers.\n *\n * @api\n * @param DocumentNode $ast\n * @param callable $typeConfigDecorator\n * @return Schema\n * @throws Error\n */\nstatic function buildAST(GraphQL\\Language\\AST\\DocumentNode $ast, callable $typeConfigDecorator = null)  /**\n * A helper function to build a GraphQLSchema directly from a source\n * document.\n *\n * @api\n * @param DocumentNode|Source|string $source\n * @param callable $typeConfigDecorator\n * @return Schema\n */\nstatic function build($source, callable $typeConfigDecorator = null)",
+            "text": "Build instance of  GraphQL\\Type\\Schema  out of type language definition (string or parsed AST)\nSee  section in docs  for details.  Class Methods:    /**\n * This takes the ast of a schema document produced by the parse function in\n * GraphQL\\Language\\Parser.\n *\n * If no schema definition is provided, then it will look for types named Query\n * and Mutation.\n *\n * Given that AST it constructs a GraphQL\\Type\\Schema. The resulting schema\n * has no resolve methods, so execution will use default resolvers.\n *\n * Accepts options as a second argument:\n *\n *    - commentDescriptions:\n *        Provide true to use preceding comments as the description.\n *\n *\n * @api\n * @param DocumentNode $ast\n * @param array $options\n * @return Schema\n * @throws Error\n */\nstatic function buildAST(GraphQL\\Language\\AST\\DocumentNode $ast, array $options = [])  /**\n * A helper function to build a GraphQLSchema directly from a source\n * document.\n *\n * @api\n * @param DocumentNode|Source|string $source\n * @param array $options\n * @return Schema\n */\nstatic function build($source, array $options = [])",
             "title": "GraphQL\\Utils\\BuildSchema"
         },
         {
             "location": "/reference/#graphqlutilsast",
-            "text": "Various utilities dealing with AST  Class Methods:    /**\n * Convert representation of AST as an associative array to instance of GraphQL\\Language\\AST\\Node.\n *\n * For example:\n *\n * ```php\n * AST::fromArray([\n *     'kind' => 'ListValue',\n *     'values' => [\n *         ['kind' => 'StringValue', 'value' => 'my str'],\n *         ['kind' => 'StringValue', 'value' => 'my other str']\n *     ],\n *     'loc' => ['start' => 21, 'end' => 25]\n * ]);\n * ```\n *\n * Will produce instance of `ListValueNode` where `values` prop is a lazily-evaluated `NodeList`\n * returning instances of `StringValueNode` on access.\n *\n * This is a reverse operation for AST::toArray($node)\n *\n * @api\n * @param array $node\n * @return Node\n */\nstatic function fromArray(array $node)  /**\n * Convert AST node to serializable array\n *\n * @api\n * @param Node $node\n * @return array\n */\nstatic function toArray(GraphQL\\Language\\AST\\Node $node)  /**\n * Produces a GraphQL Value AST given a PHP value.\n *\n * Optionally, a GraphQL type may be provided, which will be used to\n * disambiguate between value primitives.\n *\n * | PHP Value     | GraphQL Value        |\n * | ------------- | -------------------- |\n * | Object        | Input Object         |\n * | Assoc Array   | Input Object         |\n * | Array         | List                 |\n * | Boolean       | Boolean              |\n * | String        | String / Enum Value  |\n * | Int           | Int                  |\n * | Float         | Int / Float          |\n * | Mixed         | Enum Value           |\n * | null          | NullValue            |\n *\n * @api\n * @param $value\n * @param InputType $type\n * @return ObjectValueNode|ListValueNode|BooleanValueNode|IntValueNode|FloatValueNode|EnumValueNode|StringValueNode|NullValueNode\n */\nstatic function astFromValue($value, GraphQL\\Type\\Definition\\InputType $type)  /**\n * Produces a PHP value given a GraphQL Value AST.\n *\n * A GraphQL type must be provided, which will be used to interpret different\n * GraphQL Value literals.\n *\n * Returns `null` when the value could not be validly coerced according to\n * the provided type.\n *\n * | GraphQL Value        | PHP Value     |\n * | -------------------- | ------------- |\n * | Input Object         | Assoc Array   |\n * | List                 | Array         |\n * | Boolean              | Boolean       |\n * | String               | String        |\n * | Int / Float          | Int / Float   |\n * | Enum Value           | Mixed         |\n * | Null Value           | null          |\n *\n * @api\n * @param $valueNode\n * @param InputType $type\n * @param null $variables\n * @return array|null|\\stdClass\n * @throws \\Exception\n */\nstatic function valueFromAST($valueNode, GraphQL\\Type\\Definition\\InputType $type, $variables = null)  /**\n * Returns type definition for given AST Type node\n *\n * @api\n * @param Schema $schema\n * @param NamedTypeNode|ListTypeNode|NonNullTypeNode $inputTypeNode\n * @return Type\n * @throws InvariantViolation\n */\nstatic function typeFromAST(GraphQL\\Type\\Schema $schema, $inputTypeNode)  /**\n * Returns operation type (\"query\", \"mutation\" or \"subscription\") given a document and operation name\n *\n * @api\n * @param DocumentNode $document\n * @param string $operationName\n * @return bool\n */\nstatic function getOperation(GraphQL\\Language\\AST\\DocumentNode $document, $operationName = null)",
+            "text": "Various utilities dealing with AST  Class Methods:    /**\n * Convert representation of AST as an associative array to instance of GraphQL\\Language\\AST\\Node.\n *\n * For example:\n *\n * ```php\n * AST::fromArray([\n *     'kind' => 'ListValue',\n *     'values' => [\n *         ['kind' => 'StringValue', 'value' => 'my str'],\n *         ['kind' => 'StringValue', 'value' => 'my other str']\n *     ],\n *     'loc' => ['start' => 21, 'end' => 25]\n * ]);\n * ```\n *\n * Will produce instance of `ListValueNode` where `values` prop is a lazily-evaluated `NodeList`\n * returning instances of `StringValueNode` on access.\n *\n * This is a reverse operation for AST::toArray($node)\n *\n * @api\n * @param array $node\n * @return Node\n */\nstatic function fromArray(array $node)  /**\n * Convert AST node to serializable array\n *\n * @api\n * @param Node $node\n * @return array\n */\nstatic function toArray(GraphQL\\Language\\AST\\Node $node)  /**\n * Produces a GraphQL Value AST given a PHP value.\n *\n * Optionally, a GraphQL type may be provided, which will be used to\n * disambiguate between value primitives.\n *\n * | PHP Value     | GraphQL Value        |\n * | ------------- | -------------------- |\n * | Object        | Input Object         |\n * | Assoc Array   | Input Object         |\n * | Array         | List                 |\n * | Boolean       | Boolean              |\n * | String        | String / Enum Value  |\n * | Int           | Int                  |\n * | Float         | Int / Float          |\n * | Mixed         | Enum Value           |\n * | null          | NullValue            |\n *\n * @api\n * @param $value\n * @param InputType $type\n * @return ObjectValueNode|ListValueNode|BooleanValueNode|IntValueNode|FloatValueNode|EnumValueNode|StringValueNode|NullValueNode\n */\nstatic function astFromValue($value, GraphQL\\Type\\Definition\\InputType $type)  /**\n * Produces a PHP value given a GraphQL Value AST.\n *\n * A GraphQL type must be provided, which will be used to interpret different\n * GraphQL Value literals.\n *\n * Returns `null` when the value could not be validly coerced according to\n * the provided type.\n *\n * | GraphQL Value        | PHP Value     |\n * | -------------------- | ------------- |\n * | Input Object         | Assoc Array   |\n * | List                 | Array         |\n * | Boolean              | Boolean       |\n * | String               | String        |\n * | Int / Float          | Int / Float   |\n * | Enum Value           | Mixed         |\n * | Null Value           | null          |\n *\n * @api\n * @param $valueNode\n * @param InputType $type\n * @param null $variables\n * @return array|null|\\stdClass\n * @throws \\Exception\n */\nstatic function valueFromAST($valueNode, GraphQL\\Type\\Definition\\InputType $type, $variables = null)  /**\n * Produces a PHP value given a GraphQL Value AST.\n *\n * Unlike `valueFromAST()`, no type is provided. The resulting JavaScript value\n * will reflect the provided GraphQL value AST.\n *\n * | GraphQL Value        | PHP Value     |\n * | -------------------- | ------------- |\n * | Input Object         | Assoc Array   |\n * | List                 | Array         |\n * | Boolean              | Boolean       |\n * | String               | String        |\n * | Int / Float          | Int / Float   |\n * | Enum                 | Mixed         |\n * | Null                 | null          |\n *\n * @api\n * @param Node $valueNode\n * @param array|null $variables\n * @return mixed\n * @throws \\Exception\n */\nstatic function valueFromASTUntyped($valueNode, array $variables = null)  /**\n * Returns type definition for given AST Type node\n *\n * @api\n * @param Schema $schema\n * @param NamedTypeNode|ListTypeNode|NonNullTypeNode $inputTypeNode\n * @return Type\n * @throws \\Exception\n */\nstatic function typeFromAST(GraphQL\\Type\\Schema $schema, $inputTypeNode)  /**\n * Returns operation type (\"query\", \"mutation\" or \"subscription\") given a document and operation name\n *\n * @api\n * @param DocumentNode $document\n * @param string $operationName\n * @return bool\n */\nstatic function getOperation(GraphQL\\Language\\AST\\DocumentNode $document, $operationName = null)",
             "title": "GraphQL\\Utils\\AST"
         },
         {
             "location": "/reference/#graphqlutilsschemaprinter",
-            "text": "Given an instance of Schema, prints it in GraphQL type language.  Class Methods:    /**\n * @api\n * @param Schema $schema\n * @return string\n */\nstatic function doPrint(GraphQL\\Type\\Schema $schema)  /**\n * @api\n * @param Schema $schema\n * @return string\n */\nstatic function printIntrosepctionSchema(GraphQL\\Type\\Schema $schema)",
+            "text": "Given an instance of Schema, prints it in GraphQL type language.  Class Methods:    /**\n * Accepts options as a second argument:\n *\n *    - commentDescriptions:\n *        Provide true to use preceding comments as the description.\n * @api\n * @param Schema $schema\n * @return string\n */\nstatic function doPrint(GraphQL\\Type\\Schema $schema, array $options = [])  /**\n * @api\n * @param Schema $schema\n * @return string\n */\nstatic function printIntrosepctionSchema(GraphQL\\Type\\Schema $schema, array $options = [])",
             "title": "GraphQL\\Utils\\SchemaPrinter"
         }
     ]
diff --git a/mkdocs/js/text.js b/search/text.js
similarity index 100%
rename from mkdocs/js/text.js
rename to search/text.js
diff --git a/security/index.html b/security/index.html
index 89d029e..d574594 100755
--- a/security/index.html
+++ b/security/index.html
@@ -289,12 +289,12 @@ GraphQL::executeQuery(/*...*/);
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -308,7 +308,10 @@ GraphQL::executeQuery(/*...*/);
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/sitemap.xml b/sitemap.xml
index 904a7cc..70594e9 100755
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -4,7 +4,7 @@
     
     <url>
      <loc>/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -12,7 +12,7 @@
     
     <url>
      <loc>/getting-started/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -20,7 +20,7 @@
     
     <url>
      <loc>/complementary-tools/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -29,67 +29,67 @@
         
     <url>
      <loc>/type-system/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/object-types/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/scalar-types/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/enum-types/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/lists-and-nonnulls/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/interfaces/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/unions/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/input-types/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/directives/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/schema/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/type-language/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
@@ -98,7 +98,7 @@
     
     <url>
      <loc>/executing-queries/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -106,7 +106,7 @@
     
     <url>
      <loc>/data-fetching/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -114,7 +114,7 @@
     
     <url>
      <loc>/error-handling/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -122,7 +122,7 @@
     
     <url>
      <loc>/security/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -130,7 +130,7 @@
     
     <url>
      <loc>/how-it-works/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -138,7 +138,7 @@
     
     <url>
      <loc>/reference/</loc>
-     <lastmod>2018-01-19</lastmod>
+     <lastmod>2018-04-20</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
diff --git a/type-system/directives/index.html b/type-system/directives/index.html
index 8fc11dc..cd35218 100755
--- a/type-system/directives/index.html
+++ b/type-system/directives/index.html
@@ -219,9 +219,9 @@ in field resolvers to modify the output depending on those directives or perform
 <p>In <strong>graphql-php</strong> custom directive is an instance of <code>GraphQL\Type\Definition\Directive</code>
 (or one of its subclasses) which accepts an array of following options:</p>
 <pre><code class="php">&lt;?php
+use GraphQL\Language\DirectiveLocation;
 use GraphQL\Type\Definition\Type;
 use GraphQL\Type\Definition\Directive;
-use GraphQL\Type\Definition\DirectiveLocation;
 use GraphQL\Type\Definition\FieldArgument;
 
 $trackDirective = new Directive([
@@ -267,12 +267,12 @@ $trackDirective = new Directive([
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -286,7 +286,10 @@ $trackDirective = new Directive([
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/enum-types/index.html b/type-system/enum-types/index.html
index 9c6fefb..f6d873d 100755
--- a/type-system/enum-types/index.html
+++ b/type-system/enum-types/index.html
@@ -427,12 +427,12 @@ $heroType = new ObjectType([
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -446,7 +446,10 @@ $heroType = new ObjectType([
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/index.html b/type-system/index.html
index 61ef459..4e15942 100755
--- a/type-system/index.html
+++ b/type-system/index.html
@@ -328,12 +328,12 @@ type definitions.</p>
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -347,7 +347,10 @@ type definitions.</p>
       
     </span>
 </div>
+    <script>var base_url = '..';</script>
     <script src="../js/theme.js"></script>
+      <script src="../search/require.js"></script>
+      <script src="../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/input-types/index.html b/type-system/input-types/index.html
index 5392465..b5ea8c4 100755
--- a/type-system/input-types/index.html
+++ b/type-system/input-types/index.html
@@ -421,12 +421,12 @@ resolver as <code>$args['filters']</code></p>
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -440,7 +440,10 @@ resolver as <code>$args['filters']</code></p>
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/interfaces/index.html b/type-system/interfaces/index.html
index 2225ec3..e6f0624 100755
--- a/type-system/interfaces/index.html
+++ b/type-system/interfaces/index.html
@@ -375,12 +375,12 @@ than single <strong>resolveType</strong> call. So it is recommended to define <s
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -394,7 +394,10 @@ than single <strong>resolveType</strong> call. So it is recommended to define <s
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/lists-and-nonnulls/index.html b/type-system/lists-and-nonnulls/index.html
index 27fd8a0..e74e036 100755
--- a/type-system/lists-and-nonnulls/index.html
+++ b/type-system/lists-and-nonnulls/index.html
@@ -268,12 +268,12 @@ nullable parent field which will be set to <strong>null</strong>).</p>
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -287,7 +287,10 @@ nullable parent field which will be set to <strong>null</strong>).</p>
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/object-types/index.html b/type-system/object-types/index.html
index fdafe06..01587ce 100755
--- a/type-system/object-types/index.html
+++ b/type-system/object-types/index.html
@@ -516,12 +516,12 @@ public property <strong>$config</strong>. Use it to implement app-level mappings
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -535,7 +535,10 @@ public property <strong>$config</strong>. Use it to implement app-level mappings
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/scalar-types/index.html b/type-system/scalar-types/index.html
index 7d24138..0129225 100755
--- a/type-system/scalar-types/index.html
+++ b/type-system/scalar-types/index.html
@@ -337,12 +337,12 @@ $emailType = new CustomScalarType([
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -356,7 +356,10 @@ $emailType = new CustomScalarType([
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/schema/index.html b/type-system/schema/index.html
index 6a62df4..dbbd96b 100755
--- a/type-system/schema/index.html
+++ b/type-system/schema/index.html
@@ -431,12 +431,12 @@ try {
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -450,7 +450,10 @@ try {
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/type-language/index.html b/type-system/type-language/index.html
index edeb2fa..4e6ce1a 100755
--- a/type-system/type-language/index.html
+++ b/type-system/type-language/index.html
@@ -114,9 +114,6 @@
     <li class="toctree-l3"><a href="#defining-your-schema">Defining your schema</a></li>
     
 
-    <li class="toctree-l3"><a href="#defining-resolvers">Defining resolvers</a></li>
-    
-
     <li class="toctree-l3"><a href="#performance-considerations">Performance considerations</a></li>
     
 
@@ -220,30 +217,9 @@ $contents = file_get_contents('schema.graphql');
 $schema = BuildSchema::build($contents);
 </code></pre>
 
-<p>By default, such schema is created without any resolvers. As a result, it doesn't support <strong>Interfaces</strong> and <strong>Unions</strong>
-because it is impossible to resolve actual implementations during execution.</p>
-<p>Also, we have to rely on <a href="../../data-fetching/#default-field-resolver">default field resolver</a> and <strong>root value</strong> in 
+<p>By default, such schema is created without any resolvers.</p>
+<p>We have to rely on <a href="../../data-fetching/#default-field-resolver">default field resolver</a> and <strong>root value</strong> in 
 order to execute a query against this schema.</p>
-<h1 id="defining-resolvers">Defining resolvers</h1>
-<p>Since 0.10.0</p>
-<p>In order to enable <strong>Interfaces</strong>, <strong>Unions</strong> and custom field resolvers you can pass the second argument: 
-<strong>type config decorator</strong> to schema builder. </p>
-<p>It accepts default type config produced by the builder and is expected to add missing options like 
-<a href="../interfaces/#configuration-options"><strong>resolveType</strong></a> for interface types or 
-<a href="../object-types/#configuration-options"><strong>resolveField</strong></a> for object types.</p>
-<pre><code class="php">&lt;?php
-use GraphQL\Utils\BuildSchema;
-
-$typeConfigDecorator = function($typeConfig, $typeDefinitionNode) {
-    $name = $typeConfig['name'];
-    // ... add missing options to $typeConfig based on type $name
-    return $typeConfig;
-};
-
-$contents = file_get_contents('schema.graphql');
-$schema = BuildSchema::build($contents, $typeConfigDecorator);
-</code></pre>
-
 <h1 id="performance-considerations">Performance considerations</h1>
 <p>Since 0.10.0</p>
 <p>Method <strong>build()</strong> produces a <a href="../schema/#lazy-loading-of-types">lazy schema</a>
@@ -291,12 +267,12 @@ $schema = BuildSchema::build($document, $typeConfigDecorator);
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -310,7 +286,10 @@ $schema = BuildSchema::build($document, $typeConfigDecorator);
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
diff --git a/type-system/unions/index.html b/type-system/unions/index.html
index 9da6bb9..2a12531 100755
--- a/type-system/unions/index.html
+++ b/type-system/unions/index.html
@@ -271,12 +271,12 @@ $searchResultType = new UnionType([
 
   Built with <a href="http://www.mkdocs.org">MkDocs</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
 </footer>
-	  
+      
         </div>
       </div>
 
     </section>
-    
+
   </div>
 
   <div class="rst-versions" role="note" style="cursor: pointer">
@@ -290,7 +290,10 @@ $searchResultType = new UnionType([
       
     </span>
 </div>
+    <script>var base_url = '../..';</script>
     <script src="../../js/theme.js"></script>
+      <script src="../../search/require.js"></script>
+      <script src="../../search/search.js"></script>
 
 </body>
 </html>
