Added the methods approveChatJoinRequest and declineChatJoinRequest for managing requests to join the chat.

Author: TiiFuchs

src/Request.php

@@ -64,6 +64,8 @@
  * @method static ServerResponse createChatInviteLink(array $data)            Use this method to create an additional invite link for a chat. The bot must be an administrator in the chat for this to work and must have the appropriate admin rights. The link can be revoked using the method revokeChatInviteLink. Returns the new invite link as ChatInviteLink object.
  * @method static ServerResponse editChatInviteLink(array $data)              Use this method to edit a non-primary invite link created by the bot. The bot must be an administrator in the chat for this to work and must have the appropriate admin rights. Returns the edited invite link as a ChatInviteLink object.
  * @method static ServerResponse revokeChatInviteLink(array $data)            Use this method to revoke an invite link created by the bot. If the primary link is revoked, a new link is automatically generated. The bot must be an administrator in the chat for this to work and must have the appropriate admin rights. Returns the revoked invite link as ChatInviteLink object.
+ * @method static ServerResponse approveChatJoinRequest(array $data)          Use this method to approve a chat join request. The bot must be an administrator in the chat for this to work and must have the can_invite_users administrator right. Returns True on success.
+ * @method static ServerResponse declineChatJoinRequest(array $data)          Use this method to decline a chat join request. The bot must be an administrator in the chat for this to work and must have the can_invite_users administrator right. Returns True on success.
  * @method static ServerResponse setChatPhoto(array $data)                    Use this method to set a new profile photo for the chat. Photos can't be changed for private chats. The bot must be an administrator in the chat for this to work and must have the appropriate admin rights. Returns True on success.
  * @method static ServerResponse deleteChatPhoto(array $data)                 Use this method to delete a chat photo. Photos can't be changed for private chats. The bot must be an administrator in the chat for this to work and must have the appropriate admin rights. Returns True on success.
  * @method static ServerResponse setChatTitle(array $data)                    Use this method to change the title of a chat. Titles can't be changed for private chats. The bot must be an administrator in the chat for this to work and must have the appropriate admin rights. Returns True on success.
@@ -204,6 +206,8 @@ class Request
         'createChatInviteLink',
         'editChatInviteLink',
         'revokeChatInviteLink',
+        'approveChatJoinRequest',
+        'declineChatJoinRequest',
         'setChatPhoto',
         'deleteChatPhoto',
         'setChatTitle',