def get_bin_query_session(self):
raise Unimplemented()<EOL>
Gets the bin query session.

        return: (osid.resource.BinQuerySession) - a ``BinQuerySession``
        raise:  OperationFailed - unable to complete request
        raise:  Unimplemented - ``supports_bin_query()`` is ``false``
        *compliance: optional -- This method must be implemented if
        ``supports_bin_query()`` is ``true``.*