Improve code to phpstan level 3

Author: DigitalTimK

phpstan.neon

@@ -1,5 +1,5 @@
 parameters:
-    level: 1
+    level: 3
     paths:
         - src/
         - tests/

src/BigBlueButton.php

@@ -201,7 +201,7 @@ public function getInsertDocumentUrl($createMeetingParams)
     /**
      * @param $insertDocumentParams InsertDocumentParameters
      *
-     * @return InsertDocumentResponse
+     * @return CreateMeetingResponse
      *
      * @throws \RuntimeException
      */

src/Core/Hook.php

@@ -31,7 +31,7 @@ class Hook
     protected $rawXml;
 
     /**
-     * @var string
+     * @var int
      */
     private $hookId;
 
@@ -71,7 +71,7 @@ public function __construct($xml)
     }
 
     /**
-     * @return string
+     * @return int
      */
     public function getHookId()
     {

src/Parameters/InsertDocumentParameters.php

@@ -50,7 +50,7 @@ public function getMeetingId()
     /**
      * @param string $meetingId
      *
-     * @return EndMeetingParameters
+     * @return InsertDocumentParameters
      */
     public function setMeetingId($meetingId)
     {

src/Parameters/JoinMeetingParameters.php

@@ -40,7 +40,7 @@ class JoinMeetingParameters extends UserDataParameters
 
     private ?string $webVoiceConf = null;
 
-    private ?string $creationTime = null;
+    private ?int $creationTime = null;
 
     private ?string $avatarURL = null;
 
@@ -147,7 +147,7 @@ public function setWebVoiceConf(string $webVoiceConf): self
         return $this;
     }
 
-    public function getCreationTime(): string
+    public function getCreationTime(): int
     {
         return $this->creationTime;
     }

src/Responses/CreateMeetingResponse.php

@@ -102,7 +102,7 @@ public function getCreationDate()
     }
 
     /**
-     * @return true
+     * @return bool
      */
     public function hasUserJoined()
     {