'Renders GrrMessage payload and renames args_rdf_name field.'

def RenderPayload(self, result, value):

    if ('args_rdf_name' in result):
        result['payload_type'] = result['args_rdf_name']
        del result['args_rdf_name']
    if ('args' in result):
        result['payload'] = self._PassThrough(value.payload)
        del result['args']
    return result
