def init_request_id(d: ApiDefinition, u: Callable):
    if d.uses_req_id:
        return f'{GeneratorUtils.req_id_param_name(d.request_method)} = self.next_request_id()'
    else:
        return ''
def init_request_id(d: ApiDefinition, u: Callable):
    if d.uses_req_id:
        return f'{GeneratorUtils.req_id_param_name(d.request_method)} = self.next_request_id()'
    else:
        return 