exists() public method

Check if the conversation already exists
public exists ( ) : boolean
return boolean
 /**
  * Execute command
  *
  * @return \Longman\TelegramBot\Entities\ServerResponse
  * @throws \Longman\TelegramBot\Exception\TelegramException
  */
 public function execute()
 {
     //If a conversation is busy, execute the conversation command after handling the message
     $conversation = new Conversation($this->getMessage()->getFrom()->getId(), $this->getMessage()->getChat()->getId());
     //Fetch conversation command if it exists and execute it
     if ($conversation->exists() && ($command = $conversation->getCommand())) {
         return $this->telegram->executeCommand($command);
     }
     return Request::emptyResponse();
 }
 /**
  * @test
  */
 public function cancelConversation()
 {
     $info = TestHelpers::startFakeConversation('command');
     $conversation = new Conversation($info['user_id'], $info['chat_id'], 'command');
     $this->assertTrue($conversation->exists());
     $conversation->cancel();
     $conversation2 = new Conversation($info['user_id'], $info['chat_id']);
     $this->assertFalse($conversation2->exists());
 }