@abc.abstractmethod<EOL><INDENT>def receive_data(self):<DEDENT>
return<EOL>
Receives data from the remote transport endpoint.

        :return: the input stream containing the received data
        :rtype: ``osid.transport.DataInputStream``
        :raise: ``IllegalState`` -- ``has_data_available()`` is ``false``
        :raise: ``OperationFailed`` -- unable to complete request

        *compliance: mandatory -- This method must be implemented.*