code: def get_family_lookup_session(self, proxy=None, *args, **kwargs):
          
          if not self.supports_family_lookup():
              raise Unimplemented()
          try:
              from . import sessions
          except ImportError:
              raise OperationFailed()
          proxy = self._convert_proxy(proxy)
          try:
              session = sessions.FamilyLookupSession(proxy=proxy, runtime=self._runtime, **kwargs)
          except AttributeError:
              raise OperationFailed()
          return session
docs: Gets the ``OsidSession`` associated with the family lookup service.
  
          arg:    proxy (osid.proxy.Proxy): a proxy
          return: (osid.relationship.FamilyLookupSession) - a
                  ``FamilyLookupSession``
          raise:  NullArgument - ``proxy`` is ``null``
          raise:  OperationFailed - unable to complete request
          raise:  Unimplemented - ``supports_family_lookup()`` is
                  ``false``
          *compliance: optional -- This method must be implemented if ``supports_family_lookup()`` is ``true``.*