def bulk_edit(self, _fields, ids=None, filter=None, type=None, all=False, testvars=None): # pylint: disable=redefined-builtin
        """Bulk edit a set of configs.

        :param _fields: :class:`configs.Config <configs.Config>` object
        :param ids: (optional) Int list of config IDs.
        :param filter: (optional) String list of filters.
        :param type: (optional) `union` or `inter` as string.
        :param all: (optional) Apply to all if bool `True`.
        :param testvars: (optional) :class:`configs.ConfigTestvars <configs.ConfigTestvars>` list
        """
        schema = self.EDIT_SCHEMA
        _fields = self.service.encode(schema, _fields, skip_none=True)
        return self.service.bulk_edit(self.base, self.RESOURCE,
                                      _fields, ids=ids, filter=filter, type=type, all=all, testvars=testvars)