code: def get_asset_lookup_session(self, proxy=None):
          
          return AssetLookupSession(self._provider_manager.get_asset_lookup_session(proxy),
                                    self._config_map)
docs: Gets the ``OsidSession`` associated with the asset lookup service.
  
          arg:    proxy (osid.proxy.Proxy): a proxy
          return: (osid.repository.AssetLookupSession) - an
                  ``AssetLookupSession``
          raise:  NullArgument - ``proxy`` is ``null``
          raise:  OperationFailed - unable to complete request
          raise:  Unimplemented - ``supports_asset_lookup()`` is ``false``
          *compliance: optional -- This method must be implemented if
          ``supports_asset_lookup()`` is ``true``.*