workflow.py 文件源码

def unregister(self, name):
        """Remove registered serializer with ``name``.

        Raises a :class:`ValueError` if there is no such registered
        serializer.

        :param name: Name of serializer to remove
        :type name: ``unicode`` or ``str``
        :returns: serializer object

        """
        if name not in self._serializers:
            raise ValueError('No such serializer registered : {0}'.format(
                             name))

        serializer = self._serializers[name]
        del self._serializers[name]

        return serializer