diff --git a/src/Bot/Client.php b/src/Bot/Client.php
index 9a0784d..85a0fc5 100644
--- a/src/Bot/Client.php
+++ b/src/Bot/Client.php
@@ -24,6 +24,7 @@ use RetailCrm\Mg\Bot\Model\Entity\Message\Message;
 use RetailCrm\Mg\Bot\Model\Entity\Template\Template;
 use RetailCrm\Mg\Bot\Model\Entity\User;
 use RetailCrm\Mg\Bot\Model\ModelAdapter;
+use RetailCrm\Mg\Bot\Model\ModelInterface;
 use RetailCrm\Mg\Bot\Model\Request\UploadFileByUrlRequest;
 use RetailCrm\Mg\Bot\Model\Response\AssignResponse;
 use RetailCrm\Mg\Bot\Model\Response\ErrorOnlyResponse;
@@ -465,10 +466,10 @@ class Client
     /**
      * Returns templates list
      *
-     * @return array
+     * @return Template[]
      * @throws \Exception
      */
-    public function templates()
+    public function templates(): array
     {
         $response = $this->client->makeRequest(
             '/templates',
@@ -480,7 +481,7 @@ class Client
         return $adapter->getResponseList($response);
     }
 
-    public function templateSend(string $templateId, Model\Request\TemplateSendRequest $request)
+    public function templateSend(string $templateId, Model\Request\TemplateSendRequest $request): ModelInterface
     {
         $response = $this->client->makeRequest(
             sprintf('/templates/%d/send', $templateId),
diff --git a/src/Bot/Model/Entity/Template/Template.php b/src/Bot/Model/Entity/Template/Template.php
index c4ea038..b67ce56 100644
--- a/src/Bot/Model/Entity/Template/Template.php
+++ b/src/Bot/Model/Entity/Template/Template.php
@@ -72,7 +72,7 @@ class Template implements ModelInterface
     private $type;
 
     /**
-     * @var array $template
+     * @var array<string, string> $template
      *
      * @Type("array")
      * @Accessor(getter="getTemplate",setter="setTemplate")
@@ -129,7 +129,7 @@ class Template implements ModelInterface
     private $quality;
 
     /**
-     * @var array $header
+     * @var array<string, string> $header
      *
      * @Type("array")
      * @Accessor(getter="getHeader",setter="setHeader")
@@ -138,7 +138,7 @@ class Template implements ModelInterface
     private $header;
 
     /**
-     * @var array $header
+     * @var array<string, array<string, string>> $buttons
      *
      * @Type("array")
      * @Accessor(getter="getButtons",setter="setButtons")
@@ -243,7 +243,7 @@ class Template implements ModelInterface
     }
 
     /**
-     * @return array|null
+     * @return array<string, string>|null
      */
     public function getTemplate(): ?array
     {
@@ -251,9 +251,9 @@ class Template implements ModelInterface
     }
 
     /**
-     * @param mixed $template
+     * @param array<string, string> $template
      */
-    public function setTemplate($template): void
+    public function setTemplate(array $template): void
     {
         $this->template = $template;
     }
@@ -352,7 +352,7 @@ class Template implements ModelInterface
     }
 
     /**
-     * @return array|null
+     * @return array<string, string>|null
      */
     public function getHeader(): ?array
     {
@@ -360,7 +360,7 @@ class Template implements ModelInterface
     }
 
     /**
-     * @param array $header
+     * @param array<string, string> $header
      */
     public function setHeader(array $header): void
     {
@@ -368,7 +368,7 @@ class Template implements ModelInterface
     }
 
     /**
-     * @return array|null
+     * @return array<string, array<string, string>>|null
      */
     public function getButtons(): ?array
     {
@@ -376,7 +376,7 @@ class Template implements ModelInterface
     }
 
     /**
-     * @param array $buttons
+     * @param array<string, array<string, string>> $buttons
      */
     public function setButtons(array $buttons): void
     {
diff --git a/src/Bot/Model/Entity/Template/TemplateVariables.php b/src/Bot/Model/Entity/Template/TemplateVariables.php
index 8469a29..1c2ffeb 100644
--- a/src/Bot/Model/Entity/Template/TemplateVariables.php
+++ b/src/Bot/Model/Entity/Template/TemplateVariables.php
@@ -15,7 +15,7 @@ use RetailCrm\Mg\Bot\Model\ModelInterface;
 class TemplateVariables implements ModelInterface
 {
     /**
-     * @var array $header
+     * @var array<string, string> $header
      *
      * @Type("array")
      * @Accessor(getter="getHeader",setter="setHeader")
@@ -23,7 +23,7 @@ class TemplateVariables implements ModelInterface
     private $header;
 
     /**
-     * @var array $body
+     * @var array<string, string> $body
      *
      * @Type("array")
      * @Accessor(getter="getBody",setter="setBody")
@@ -31,7 +31,7 @@ class TemplateVariables implements ModelInterface
     private $body;
 
     /**
-     * @var array<array> $buttons
+     * @var array<string, array<string, string>> $buttons
      *
      * @Type("array")
      * @Accessor(getter="getButtons",setter="setButtons")
@@ -39,7 +39,7 @@ class TemplateVariables implements ModelInterface
     private $buttons;
 
     /**
-     * @return array|null
+     * @return array<string, string>|null
      */
     public function getHeader(): ?array
     {
@@ -47,7 +47,7 @@ class TemplateVariables implements ModelInterface
     }
 
     /**
-     * @param array $header
+     * @param array<string, string> $header
      */
     public function setHeader(array $header): void
     {
@@ -55,7 +55,7 @@ class TemplateVariables implements ModelInterface
     }
 
     /**
-     * @return array|null
+     * @return array<string, string>|null
      */
     public function getBody(): ?array
     {
@@ -63,7 +63,7 @@ class TemplateVariables implements ModelInterface
     }
 
     /**
-     * @param array $body
+     * @param array<string, string> $body
      */
     public function setBody(array $body): void
     {
@@ -71,7 +71,7 @@ class TemplateVariables implements ModelInterface
     }
 
     /**
-     * @return array[]|null
+     * @return array<string, array<string, string>>|null
      */
     public function getButtons(): ?array
     {
@@ -79,7 +79,7 @@ class TemplateVariables implements ModelInterface
     }
 
     /**
-     * @param array[] $buttons
+     * @param array<string, array<string, string>> $buttons
      */
     public function setButtons(array $buttons): void
     {