diff --git a/src/Bot/Model/Entity/Bot.php b/src/Bot/Model/Entity/Bot.php
index 44cd5dd..4fc8827 100644
--- a/src/Bot/Model/Entity/Bot.php
+++ b/src/Bot/Model/Entity/Bot.php
@@ -136,7 +136,7 @@ class Bot implements ModelInterface
     private $isSystem;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getId(): ?string
     {
@@ -184,7 +184,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName(): ?string
     {
@@ -200,7 +200,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return array
+     * @return array|null
      */
     public function getEvents(): ?array
     {
@@ -216,7 +216,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getClientId(): ?string
     {
@@ -232,7 +232,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getAvatarUrl(): ?string
     {
@@ -248,7 +248,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return array
+     * @return array|null
      */
     public function getRoles(): ?array
     {
@@ -264,7 +264,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getDeactivatedAt(): ?string
     {
@@ -280,7 +280,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isActive(): ?bool
     {
@@ -296,7 +296,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isSelf(): ?bool
     {
@@ -312,7 +312,7 @@ class Bot implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isSystem(): ?bool
     {
diff --git a/src/Bot/Model/Entity/Channel/Channel.php b/src/Bot/Model/Entity/Channel/Channel.php
index 01bbe20..c54d5d7 100644
--- a/src/Bot/Model/Entity/Channel/Channel.php
+++ b/src/Bot/Model/Entity/Channel/Channel.php
@@ -101,7 +101,7 @@ class Channel implements ModelInterface
     private $name;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getId(): ?string
     {
@@ -181,7 +181,7 @@ class Channel implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isActive(): ?bool
     {
@@ -197,7 +197,7 @@ class Channel implements ModelInterface
     }
 
     /**
-     * @return ChannelSettings
+     * @return ChannelSettings|null
      */
     public function getSettings(): ?ChannelSettings
     {
@@ -213,7 +213,7 @@ class Channel implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getType(): ?string
     {
@@ -229,7 +229,7 @@ class Channel implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName(): ?string
     {
diff --git a/src/Bot/Model/Entity/Channel/ChannelSettings.php b/src/Bot/Model/Entity/Channel/ChannelSettings.php
index c9bb3b9..0389d32 100644
--- a/src/Bot/Model/Entity/Channel/ChannelSettings.php
+++ b/src/Bot/Model/Entity/Channel/ChannelSettings.php
@@ -90,7 +90,7 @@ class ChannelSettings implements ModelInterface
     private $file;
 
     /**
-     * @return ChannelSettingsStatus
+     * @return ChannelSettingsStatus|null
      */
     public function getStatus(): ?ChannelSettingsStatus
     {
@@ -106,7 +106,7 @@ class ChannelSettings implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isSpamAllowed(): ?bool
     {
@@ -122,7 +122,7 @@ class ChannelSettings implements ModelInterface
     }
 
     /**
-     * @return ChannelSettingsItem
+     * @return ChannelSettingsItem|null
      */
     public function getText(): ?ChannelSettingsItem
     {
@@ -138,7 +138,7 @@ class ChannelSettings implements ModelInterface
     }
 
     /**
-     * @return ChannelSettingsItem
+     * @return ChannelSettingsItem|null
      */
     public function getProduct(): ?ChannelSettingsItem
     {
@@ -154,7 +154,7 @@ class ChannelSettings implements ModelInterface
     }
 
     /**
-     * @return ChannelSettingsItem
+     * @return ChannelSettingsItem|null
      */
     public function getOrder(): ?ChannelSettingsItem
     {
@@ -170,7 +170,7 @@ class ChannelSettings implements ModelInterface
     }
 
     /**
-     * @return ChannelSettingsItem
+     * @return ChannelSettingsItem|null
      */
     public function getImage(): ?ChannelSettingsItem
     {
@@ -186,7 +186,7 @@ class ChannelSettings implements ModelInterface
     }
 
     /**
-     * @return ChannelSettingsItem
+     * @return ChannelSettingsItem|null
      */
     public function getFile(): ?ChannelSettingsItem
     {
diff --git a/src/Bot/Model/Entity/Channel/ChannelSettingsItem.php b/src/Bot/Model/Entity/Channel/ChannelSettingsItem.php
index ba74828..71a22f7 100644
--- a/src/Bot/Model/Entity/Channel/ChannelSettingsItem.php
+++ b/src/Bot/Model/Entity/Channel/ChannelSettingsItem.php
@@ -101,7 +101,7 @@ class ChannelSettingsItem implements ModelInterface
     private $noteMaxCharsCount;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getCreating(): ?string
     {
@@ -117,7 +117,7 @@ class ChannelSettingsItem implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getEditing(): ?string
     {
@@ -133,7 +133,7 @@ class ChannelSettingsItem implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getQuoting(): ?string
     {
@@ -149,7 +149,7 @@ class ChannelSettingsItem implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getDeleting(): ?string
     {
@@ -165,7 +165,7 @@ class ChannelSettingsItem implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getDelivered(): ?string
     {
@@ -181,7 +181,7 @@ class ChannelSettingsItem implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getMaxCharsCount(): ?int
     {
@@ -197,7 +197,7 @@ class ChannelSettingsItem implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getMaxItemsCount(): ?int
     {
@@ -213,7 +213,7 @@ class ChannelSettingsItem implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getNoteMaxCharsCount(): ?int
     {
diff --git a/src/Bot/Model/Entity/Channel/ChannelSettingsStatus.php b/src/Bot/Model/Entity/Channel/ChannelSettingsStatus.php
index bc09fbb..a638036 100644
--- a/src/Bot/Model/Entity/Channel/ChannelSettingsStatus.php
+++ b/src/Bot/Model/Entity/Channel/ChannelSettingsStatus.php
@@ -47,7 +47,7 @@ class ChannelSettingsStatus implements ModelInterface
     private $read;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getDelivered(): ?string
     {
@@ -63,7 +63,7 @@ class ChannelSettingsStatus implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getRead(): ?string
     {
diff --git a/src/Bot/Model/Entity/Chat/Chat.php b/src/Bot/Model/Entity/Chat/Chat.php
index ddd679d..9a12f67 100644
--- a/src/Bot/Model/Entity/Chat/Chat.php
+++ b/src/Bot/Model/Entity/Chat/Chat.php
@@ -168,7 +168,7 @@ class Chat implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getAvatar(): ?string
     {
@@ -184,7 +184,7 @@ class Chat implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName(): ?string
     {
@@ -200,7 +200,7 @@ class Chat implements ModelInterface
     }
 
     /**
-     * @return Channel
+     * @return Channel|null
      */
     public function getChannel(): ?Channel
     {
@@ -216,7 +216,7 @@ class Chat implements ModelInterface
     }
 
     /**
-     * @return array
+     * @return array|null
      */
     public function getMembers(): ?array
     {
@@ -232,7 +232,7 @@ class Chat implements ModelInterface
     }
 
     /**
-     * @return Customer
+     * @return Customer|null
      */
     public function getCustomer(): ?Customer
     {
@@ -248,7 +248,7 @@ class Chat implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getAuthorId(): ?int
     {
@@ -264,7 +264,7 @@ class Chat implements ModelInterface
     }
 
     /**
-     * @return ChatLastMessage
+     * @return ChatLastMessage|null
      */
     public function getLastMessage(): ?ChatLastMessage
     {
diff --git a/src/Bot/Model/Entity/Chat/ChatLastMessage.php b/src/Bot/Model/Entity/Chat/ChatLastMessage.php
index 8986bc0..2da7277 100644
--- a/src/Bot/Model/Entity/Chat/ChatLastMessage.php
+++ b/src/Bot/Model/Entity/Chat/ChatLastMessage.php
@@ -88,7 +88,7 @@ class ChatLastMessage implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getType(): ?string
     {
diff --git a/src/Bot/Model/Entity/Chat/ChatMember.php b/src/Bot/Model/Entity/Chat/ChatMember.php
index ffe7f5e..e2a0c5a 100644
--- a/src/Bot/Model/Entity/Chat/ChatMember.php
+++ b/src/Bot/Model/Entity/Chat/ChatMember.php
@@ -138,7 +138,7 @@ class ChatMember implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getChatId(): ?int
     {
@@ -154,7 +154,7 @@ class ChatMember implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getUserId(): ?int
     {
@@ -170,7 +170,7 @@ class ChatMember implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isAuthor(): ?bool
     {
@@ -186,7 +186,7 @@ class ChatMember implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getState(): ?string
     {
diff --git a/src/Bot/Model/Entity/Command.php b/src/Bot/Model/Entity/Command.php
index d66db12..1896d8f 100644
--- a/src/Bot/Model/Entity/Command.php
+++ b/src/Bot/Model/Entity/Command.php
@@ -72,7 +72,7 @@ class Command implements ModelInterface
     private $description;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getId(): ?string
     {
@@ -120,7 +120,7 @@ class Command implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName(): ?string
     {
@@ -136,7 +136,7 @@ class Command implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getDescription(): ?string
     {
diff --git a/src/Bot/Model/Entity/Customer.php b/src/Bot/Model/Entity/Customer.php
index b856801..0920a18 100644
--- a/src/Bot/Model/Entity/Customer.php
+++ b/src/Bot/Model/Entity/Customer.php
@@ -174,7 +174,7 @@ class Customer implements ModelInterface
     private $email;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getId(): ?string
     {
@@ -222,7 +222,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getExternalId(): ?string
     {
@@ -238,7 +238,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getChannelId(): ?int
     {
@@ -254,7 +254,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getUsername(): ?string
     {
@@ -270,7 +270,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getFirstName(): ?string
     {
@@ -286,7 +286,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getLastName(): ?string
     {
@@ -302,7 +302,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getAvatarUrl(): ?string
     {
@@ -318,7 +318,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getProfileUrl(): ?string
     {
@@ -334,7 +334,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getRevokedAt(): ?string
     {
@@ -350,7 +350,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getCountry(): ?string
     {
@@ -366,7 +366,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getLanguage(): ?string
     {
@@ -382,7 +382,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getPhone(): ?string
     {
@@ -398,7 +398,7 @@ class Customer implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getEmail(): ?string
     {
diff --git a/src/Bot/Model/Entity/Dialog.php b/src/Bot/Model/Entity/Dialog.php
index f0679b6..7f96ad7 100644
--- a/src/Bot/Model/Entity/Dialog.php
+++ b/src/Bot/Model/Entity/Dialog.php
@@ -126,7 +126,7 @@ class Dialog implements ModelInterface
     private $isActive;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getId(): ?string
     {
@@ -174,7 +174,7 @@ class Dialog implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getBotId(): ?int
     {
@@ -190,7 +190,7 @@ class Dialog implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getChatId(): ?int
     {
@@ -206,7 +206,7 @@ class Dialog implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getBeginMessageId(): ?int
     {
@@ -222,7 +222,7 @@ class Dialog implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getEndingMessageId(): ?int
     {
@@ -254,7 +254,7 @@ class Dialog implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isAssigned(): ?bool
     {
@@ -270,7 +270,7 @@ class Dialog implements ModelInterface
     }
 
     /**
-     * @return Responsible
+     * @return Responsible|null
      */
     public function getResponsible(): ?Responsible
     {
@@ -286,7 +286,7 @@ class Dialog implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isActive(): ?bool
     {
diff --git a/src/Bot/Model/Entity/FileMeta.php b/src/Bot/Model/Entity/FileMeta.php
index 8ee3a88..c46452d 100644
--- a/src/Bot/Model/Entity/FileMeta.php
+++ b/src/Bot/Model/Entity/FileMeta.php
@@ -47,7 +47,7 @@ class FileMeta implements ModelInterface
     private $width;
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getHeight(): ?int
     {
@@ -63,7 +63,7 @@ class FileMeta implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getWidth(): ?int
     {
diff --git a/src/Bot/Model/Entity/Message/Item.php b/src/Bot/Model/Entity/Message/Item.php
index 52cb46f..821e126 100644
--- a/src/Bot/Model/Entity/Message/Item.php
+++ b/src/Bot/Model/Entity/Message/Item.php
@@ -56,7 +56,7 @@ class Item implements ModelInterface
     private $caption;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getId(): ?string
     {
@@ -72,7 +72,7 @@ class Item implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getSize(): ?int
     {
@@ -88,7 +88,7 @@ class Item implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getCaption()
     {
diff --git a/src/Bot/Model/Entity/Message/Message.php b/src/Bot/Model/Entity/Message/Message.php
index 40d972f..8f068c3 100644
--- a/src/Bot/Model/Entity/Message/Message.php
+++ b/src/Bot/Model/Entity/Message/Message.php
@@ -273,7 +273,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return array
+     * @return array|null
      */
     public function getItems(): ?array
     {
@@ -289,7 +289,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return User
+     * @return User|null
      */
     public function getFrom(): ?User
     {
@@ -321,7 +321,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getType(): ?string
     {
@@ -337,7 +337,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getScope(): ?string
     {
@@ -353,7 +353,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getChatId(): ?int
     {
@@ -369,7 +369,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getContent(): ?string
     {
@@ -385,7 +385,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isRead(): ?bool
     {
@@ -401,7 +401,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isEdit(): ?bool
     {
@@ -417,7 +417,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getStatus(): ?string
     {
@@ -433,7 +433,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getAction(): ?string
     {
@@ -449,7 +449,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return Dialog
+     * @return Dialog|null
      */
     public function getDialog(): ?Dialog
     {
@@ -465,7 +465,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getChannelId(): ?int
     {
@@ -497,7 +497,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return MessageOrder
+     * @return MessageOrder|null
      */
     public function getOrder(): ?MessageOrder
     {
@@ -513,7 +513,7 @@ class Message implements ModelInterface
     }
 
     /**
-     * @return MessageProduct
+     * @return MessageProduct|null
      */
     public function getProduct(): ?MessageProduct
     {
diff --git a/src/Bot/Model/Entity/Message/MessageCost.php b/src/Bot/Model/Entity/Message/MessageCost.php
index 30e8bce..8308923 100644
--- a/src/Bot/Model/Entity/Message/MessageCost.php
+++ b/src/Bot/Model/Entity/Message/MessageCost.php
@@ -49,7 +49,7 @@ class MessageCost implements ModelInterface
     private $currency;
 
     /**
-     * @return float
+     * @return float|null
      */
     public function getValue()
     {
@@ -65,7 +65,7 @@ class MessageCost implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getCurrency()
     {
diff --git a/src/Bot/Model/Entity/Message/MessageDelivery.php b/src/Bot/Model/Entity/Message/MessageDelivery.php
index 15526fb..94c737d 100644
--- a/src/Bot/Model/Entity/Message/MessageDelivery.php
+++ b/src/Bot/Model/Entity/Message/MessageDelivery.php
@@ -68,7 +68,7 @@ class MessageDelivery implements ModelInterface
     private $comment;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName()
     {
@@ -84,7 +84,7 @@ class MessageDelivery implements ModelInterface
     }
 
     /**
-     * @return MessageCost
+     * @return MessageCost|null
      */
     public function getPrice()
     {
@@ -100,7 +100,7 @@ class MessageDelivery implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getAddress()
     {
@@ -116,7 +116,7 @@ class MessageDelivery implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getComment()
     {
diff --git a/src/Bot/Model/Entity/Message/MessageOrder.php b/src/Bot/Model/Entity/Message/MessageOrder.php
index 52eb7dd..5247e17 100644
--- a/src/Bot/Model/Entity/Message/MessageOrder.php
+++ b/src/Bot/Model/Entity/Message/MessageOrder.php
@@ -101,7 +101,7 @@ class MessageOrder implements ModelInterface
     private $payments;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getNumber()
     {
@@ -117,7 +117,7 @@ class MessageOrder implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getUrl()
     {
@@ -133,7 +133,7 @@ class MessageOrder implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getDate()
     {
@@ -149,7 +149,7 @@ class MessageOrder implements ModelInterface
     }
 
     /**
-     * @return MessageCost
+     * @return MessageCost|null
      */
     public function getCost()
     {
@@ -165,7 +165,7 @@ class MessageOrder implements ModelInterface
     }
 
     /**
-     * @return MessageStatus
+     * @return MessageStatus|null
      */
     public function getStatus()
     {
@@ -181,7 +181,7 @@ class MessageOrder implements ModelInterface
     }
 
     /**
-     * @return MessageDelivery
+     * @return MessageDelivery|null
      */
     public function getDelivery()
     {
@@ -197,7 +197,7 @@ class MessageOrder implements ModelInterface
     }
 
     /**
-     * @return array
+     * @return array|null
      */
     public function getItems()
     {
@@ -213,7 +213,7 @@ class MessageOrder implements ModelInterface
     }
 
     /**
-     * @return array
+     * @return array|null
      */
     public function getPayments()
     {
diff --git a/src/Bot/Model/Entity/Message/MessageOrderItem.php b/src/Bot/Model/Entity/Message/MessageOrderItem.php
index 487232b..fcbf53a 100644
--- a/src/Bot/Model/Entity/Message/MessageOrderItem.php
+++ b/src/Bot/Model/Entity/Message/MessageOrderItem.php
@@ -74,7 +74,7 @@ class MessageOrderItem implements ModelInterface
     private $quantity;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName()
     {
@@ -90,7 +90,7 @@ class MessageOrderItem implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getUrl()
     {
@@ -106,7 +106,7 @@ class MessageOrderItem implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getImg()
     {
@@ -122,7 +122,7 @@ class MessageOrderItem implements ModelInterface
     }
 
     /**
-     * @return MessageCost
+     * @return MessageCost|null
      */
     public function getPrice()
     {
@@ -138,7 +138,7 @@ class MessageOrderItem implements ModelInterface
     }
 
     /**
-     * @return MessageQuantity
+     * @return MessageQuantity|null
      */
     public function getQuantity()
     {
diff --git a/src/Bot/Model/Entity/Message/MessageOrderPaymentStatus.php b/src/Bot/Model/Entity/Message/MessageOrderPaymentStatus.php
index dfe106e..46cd5a8 100644
--- a/src/Bot/Model/Entity/Message/MessageOrderPaymentStatus.php
+++ b/src/Bot/Model/Entity/Message/MessageOrderPaymentStatus.php
@@ -47,7 +47,7 @@ class MessageOrderPaymentStatus implements ModelInterface
     private $payed;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName(): ?string
     {
@@ -63,7 +63,7 @@ class MessageOrderPaymentStatus implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function getPayed(): ?bool
     {
diff --git a/src/Bot/Model/Entity/Message/MessagePayment.php b/src/Bot/Model/Entity/Message/MessagePayment.php
index 0ef48c6..e022a62 100644
--- a/src/Bot/Model/Entity/Message/MessagePayment.php
+++ b/src/Bot/Model/Entity/Message/MessagePayment.php
@@ -56,7 +56,7 @@ class MessagePayment implements ModelInterface
     private $amount;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName()
     {
@@ -72,7 +72,7 @@ class MessagePayment implements ModelInterface
     }
 
     /**
-     * @return MessageOrderPaymentStatus
+     * @return MessageOrderPaymentStatus|null
      */
     public function getStatus()
     {
@@ -88,7 +88,7 @@ class MessagePayment implements ModelInterface
     }
 
     /**
-     * @return MessageCost
+     * @return MessageCost|null
      */
     public function getAmount()
     {
diff --git a/src/Bot/Model/Entity/Message/MessageProduct.php b/src/Bot/Model/Entity/Message/MessageProduct.php
index e7e648c..861e13e 100644
--- a/src/Bot/Model/Entity/Message/MessageProduct.php
+++ b/src/Bot/Model/Entity/Message/MessageProduct.php
@@ -108,7 +108,7 @@ class MessageProduct implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName(): ?string
     {
@@ -124,7 +124,7 @@ class MessageProduct implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getArticle(): ?string
     {
@@ -140,7 +140,7 @@ class MessageProduct implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getUrl(): ?string
     {
@@ -156,7 +156,7 @@ class MessageProduct implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getImg(): ?string
     {
@@ -172,7 +172,7 @@ class MessageProduct implements ModelInterface
     }
 
     /**
-     * @return MessageCost
+     * @return MessageCost|null
      */
     public function getCost(): ?MessageCost
     {
@@ -188,7 +188,7 @@ class MessageProduct implements ModelInterface
     }
 
     /**
-     * @return MessageQuantity
+     * @return MessageQuantity|null
      */
     public function getQuantity(): ?MessageQuantity
     {
diff --git a/src/Bot/Model/Entity/Message/MessageQuantity.php b/src/Bot/Model/Entity/Message/MessageQuantity.php
index 27b0211..9cfc426 100644
--- a/src/Bot/Model/Entity/Message/MessageQuantity.php
+++ b/src/Bot/Model/Entity/Message/MessageQuantity.php
@@ -49,7 +49,7 @@ class MessageQuantity implements ModelInterface
     private $unit;
 
     /**
-     * @return float
+     * @return float|null
      */
     public function getValue()
     {
@@ -65,7 +65,7 @@ class MessageQuantity implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getUnit()
     {
diff --git a/src/Bot/Model/Entity/Message/MessageStatus.php b/src/Bot/Model/Entity/Message/MessageStatus.php
index 95a3048..97bc0c5 100644
--- a/src/Bot/Model/Entity/Message/MessageStatus.php
+++ b/src/Bot/Model/Entity/Message/MessageStatus.php
@@ -47,7 +47,7 @@ class MessageStatus implements ModelInterface
     private $name;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getCode(): ?string
     {
@@ -63,7 +63,7 @@ class MessageStatus implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName(): ?string
     {
diff --git a/src/Bot/Model/Entity/Responsible.php b/src/Bot/Model/Entity/Responsible.php
index 3c273b3..08d903e 100644
--- a/src/Bot/Model/Entity/Responsible.php
+++ b/src/Bot/Model/Entity/Responsible.php
@@ -56,7 +56,7 @@ class Responsible implements ModelInterface
     private $type;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getAssignedAt(): ?string
     {
@@ -72,7 +72,7 @@ class Responsible implements ModelInterface
     }
 
     /**
-     * @return int
+     * @return int|null
      */
     public function getId(): ?int
     {
@@ -88,7 +88,7 @@ class Responsible implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getType(): ?string
     {
diff --git a/src/Bot/Model/Entity/User.php b/src/Bot/Model/Entity/User.php
index 8ed189c..e87d3ed 100644
--- a/src/Bot/Model/Entity/User.php
+++ b/src/Bot/Model/Entity/User.php
@@ -149,7 +149,7 @@ class User implements ModelInterface
     private $revokedAt;
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getId(): ?string
     {
@@ -197,7 +197,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getExternalId(): ?string
     {
@@ -213,7 +213,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getType(): ?string
     {
@@ -229,7 +229,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getAvatar(): ?string
     {
@@ -245,7 +245,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getName(): ?string
     {
@@ -261,7 +261,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getUsername(): ?string
     {
@@ -277,7 +277,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getFirstName(): ?string
     {
@@ -293,7 +293,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return string
+     * @return string|null
      */
     public function getLastName(): ?string
     {
@@ -309,7 +309,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isActive(): ?bool
     {
@@ -325,7 +325,7 @@ class User implements ModelInterface
     }
 
     /**
-     * @return bool
+     * @return bool|null
      */
     public function isOnline(): ?bool
     {
diff --git a/src/Bot/Model/ModelInterface.php b/src/Bot/Model/ModelInterface.php
index 1073126..c32d8e9 100644
--- a/src/Bot/Model/ModelInterface.php
+++ b/src/Bot/Model/ModelInterface.php
@@ -12,7 +12,6 @@
 
 namespace RetailCrm\Mg\Bot\Model;
 
-
 interface ModelInterface
 {
 }