diff --git a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Auth.php b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Auth.php
index 51bf3e6..e43a83e 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Auth.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Auth.php
@@ -34,60 +34,37 @@ class Auth
      */
     private $error;
 
-    /**
-     * @return string|null
-     */
-    public function getToken()
+
+    public function getToken(): ?string
     {
         return $this->token;
     }
 
-    /**
-     * @param string|null $token
-     *
-     * @return Auth
-     */
-    public function setToken(string $token = null): Auth
+    public function setToken(?string $token): self
     {
         $this->token = $token;
 
         return $this;
     }
 
-    /**
-     * @return string|null
-     */
-    public function getCsRfToken()
+    public function getCsRfToken(): ?string
     {
         return $this->csRfToken;
     }
 
-    /**
-     * @param string $csRfToken
-     *
-     * @return Auth
-     */
-    public function setCsRfToken(string $csRfToken = null)
+    public function setCsRfToken(?string $csRfToken): self
     {
         $this->csRfToken = $csRfToken;
 
         return $this;
     }
 
-    /**
-     * @return string|null
-     */
-    public function getError()
+    public function getError(): ?string
     {
         return $this->error;
     }
 
-    /**
-     * @param string|null $error
-     *
-     * @return Auth
-     */
-    public function setError(string $error = null): Auth
+    public function setError(?string $error): self
     {
         $this->error = $error;
 
diff --git a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/MetaPost.php b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/MetaPost.php
index 2b1c383..fd266e1 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/MetaPost.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/MetaPost.php
@@ -23,18 +23,15 @@ class MetaPost
     /**
      * @return Post
      */
-    public function getPost()
+    public function getPost(): ?Post
     {
         return $this->post;
     }
 
-    /**
-     * @param Post $post
-     * @return MetaPost
-     */
-    public function setPost(Post $post)
+    public function setPost(Post $post): self
     {
         $this->post = $post;
+
         return $this;
     }
 }
\ No newline at end of file
diff --git a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/Post.php b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/Post.php
index d93926f..2f2a832 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/Post.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/Post.php
@@ -76,37 +76,27 @@ class Post
     private $private;
 
 
-    /**
-     * @return string
-     */
-    public function getId()
+    public function getId(): ?string
     {
         return $this->id;
     }
 
-    /**
-     * @param string $id
-     * @return Post
-     */
-    public function setId($id)
+    public function setId(?string $id): self
     {
         $this->id = $id;
+
         return $this;
     }
 
     /**
      * @return string[]
      */
-    public function getTags()
+    public function getTags(): ?array
     {
         return $this->tags;
     }
 
-    /**
-     * @param string[] $tags
-     * @return Post
-     */
-    public function setTags($tags)
+    public function setTags(?array $tags): self
     {
         $this->tags = $tags;
         return $this;
@@ -115,7 +105,7 @@ class Post
     /**
      * @return string[]
      */
-    public function getFiles()
+    public function getFiles(): ?array
     {
         return $this->files;
     }
@@ -125,106 +115,71 @@ class Post
      *
      * @return Post
      */
-    public function setFiles($files)
+    public function setFiles(?array $files): self
     {
         $this->files = $files;
 
         return $this;
     }
 
-    /**
-     * @return User
-     */
-    public function getAuthor()
+    public function getAuthor(): ?User
     {
         return $this->author;
     }
 
-    /**
-     * @param User $author
-     * @return Post
-     */
-    public function setAuthor(User $author)
+    public function setAuthor(?User $author): self
     {
         $this->author = $author;
         return $this;
     }
 
-    /**
-     * @return string
-     */
-    public function getText()
+    public function getText(): ?string
     {
         return $this->text;
     }
 
-    /**
-     * @param string $text
-     * @return Post
-     */
-    public function setText($text)
+    public function setText(?string $text): self
     {
         $this->text = $text;
+
         return $this;
     }
 
-    /**
-     * @return string
-     */
-    public function getCreated()
+    public function getCreated(): ?string
     {
         return $this->created;
     }
 
-    /**
-     * @param string $created
-     * @return Post
-     */
-    public function setCreated($created)
+    public function setCreated(?string $created): self
     {
         $this->created = $created;
+
         return $this;
     }
 
-    /**
-     * @return string
-     */
-    public function getType()
+    public function getType(): ?string
     {
         return $this->type;
     }
 
-    /**
-     * @param string $type
-     * @return Post
-     */
-    public function setType($type)
+    public function setType(?string $type): self
     {
         $this->type = $type;
+
         return $this;
     }
 
-    /**
-     * @return boolean
-     */
-    public function getPrivate()
+    public function getPrivate(): ?bool
     {
         return $this->private;
     }
 
-    /**
-     * @return boolean
-     */
-    public function isPrivate()
+    public function isPrivate(): ?bool
     {
         return $this->private;
     }
 
-    /**
-     * @param boolean $private
-     * @return Post
-     */
-    public function setPrivate($private)
+    public function setPrivate(?bool $private): self
     {
         $this->private = $private;
         return $this;
diff --git a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/PostsPage.php b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/PostsPage.php
index 6913e1c..1e18b0a 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/PostsPage.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/PostsPage.php
@@ -22,7 +22,7 @@ class PostsPage
     /**
      * @return MetaPost[]
      */
-    public function getPosts()
+    public function getPosts(): ?array
     {
         return $this->posts;
     }
@@ -33,9 +33,10 @@ class PostsPage
      * @param MetaPost[] $posts
      * @return PostsPage
      */
-    public function setPosts($posts)
+    public function setPosts(?array $posts): self
     {
         $this->posts = $posts;
+
         return $this;
     }
 
diff --git a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/User.php b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/User.php
index fdb0c0f..829e4f1 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/User.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/Crawler/User.php
@@ -35,55 +35,34 @@ class User
     private $name;
 
 
-    /**
-     * @return string
-     */
-    public function getId()
+    public function getId(): ?string
     {
         return $this->id;
     }
 
-    /**
-     * @param string $id
-     * @return User
-     */
-    public function setId($id)
+    public function setId(?string $id): self
     {
         $this->id = $id;
         return $this;
     }
 
-    /**
-     * @return string
-     */
-    public function getLogin()
+    public function getLogin(): ?string
     {
         return $this->login;
     }
 
-    /**
-     * @param string $login
-     * @return User
-     */
-    public function setLogin($login)
+    public function setLogin(?string $login): self
     {
         $this->login = $login;
         return $this;
     }
 
-    /**
-     * @return string
-     */
-    public function getName()
+    public function getName(): ?string
     {
         return $this->name;
     }
-
-    /**
-     * @param string $name
-     * @return User
-     */
-    public function setName($name)
+    
+    public function setName(?string $name): self
     {
         $this->name = $name;
         return $this;