(self)
Return True if a receiver is waiting,
        or the buffer has room.
Return True if a receiver is waiting,
        or the buffer has room.
Return True if a receiver is waiting or the buffer has room .
def send_ready(self):
        """
        Return True if a receiver is waiting,
        or the buffer has room.
        """
        raise NotImplementedError()
def send_ready ( self ) : raise NotImplementedError ( )