public function updateSubject(int $conversationId, string $subject): void
    {
        $patch = Patch::replace('subject', $subject);
        $this->patchConversation($conversationId, $patch);
    }
public function updateSubject(int $conversationId, string $subject): void
    {
        $patch = Patch::replace('subject', $subject);
        $this->patchConversation($conversationId, $patch);
    }
public function updateSubject ( int $ conversationId , string $ subject ) : void { $ patch = Patch :: replace ( 'subject' , $ subject ) ; $ this -> patchConversation ( $ conversationId , $ patch ) ; }
Update the subject of a conversation.

@param int    $conversationId
@param string $subject
Update the subject of a conversation .