src/Api/User.php
public function sendMessage(string $message) : ?Message 
    {
        $thread = $this->messageGroup();

        if ($thread === null) return null;

        return $thread->sendMessage($message);
    }
public function sendMessage(string $message) : ?Message 
    {
        $thread = $this->messageGroup();

        if ($thread === null) return null;

        return $thread->sendMessage($message);
    }
public function sendMessage ( string $ message ) : ? Message { $ thread = $ this -> messageGroup ( ) ; if ( $ thread === null ) return null ; return $ thread -> sendMessage ( $ message ) ; }
Send a Message to the User.

@param string $message Message to send.
@return Message|null
Send a Message to the User .