def get_resource_relationship_bin_session(self):
raise Unimplemented()<EOL>
Gets the session for retrieving resource relationship to bin mappings.

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