docs: def get_relationship_query_session_for_family(self, family_id):
          """Gets the ``OsidSession`` associated with the relationship query service for the given family.
  
          arg:    family_id (osid.id.Id): the ``Id`` of the family
          return: (osid.relationship.RelationshipQuerySession) - a
                  ``RelationshipQuerySession``
          raise:  NotFound - no ``Family`` found by the given ``Id``
          raise:  NullArgument - ``family_id`` is ``null``
          raise:  OperationFailed - unable to complete request
          raise:  Unimplemented - ``supports_relationship_query()`` or
                  ``supports_visible_federation()`` is ``false``
          *compliance: optional -- This method must be implemented if
          ``supports_relationship_query()`` and
          ``supports_visible_federation()`` are ``true``*
  
          """
          if not self.supports_relationship_query():
              raise errors.Unimplemented()
          ##
          # Also include check to see if the catalog Id is found otherwise raise errors.NotFound
          ##
          # pylint: disable=no-member
          return sessions.RelationshipQuerySession(family_id, runtime=self._runtime)