private function createAndPersistConversation($subject)
    {
        $conversation = $this->driver->createConversationModel();
        $conversation->setSubject($subject);

        $this->driver->persistConversation($conversation);

        return $conversation;
    }
private function createAndPersistConversation($subject)
    {
        $conversation = $this->driver->createConversationModel();
        $conversation->setSubject($subject);

        $this->driver->persistConversation($conversation);

        return $conversation;
    }
private function createAndPersistConversation ( $ subject ) { $ conversation = $ this -> driver -> createConversationModel ( ) ; $ conversation -> setSubject ( $ subject ) ; $ this -> driver -> persistConversation ( $ conversation ) ; return $ conversation ; }
Create and persist a conversation object.

@param string $subject

@return ConversationInterface
Create and persist a conversation object .