async def release(self, task_id, *, delay=None):
opts = {}<EOL>if delay is not None:<EOL><INDENT>opts['<STR_LIT>'] = delay<EOL><DEDENT>args = (task_id, opts)<EOL>res = await self.conn.call(self.__funcs['<STR_LIT>'], args)<EOL>return self._create_task(res.body)<EOL>
Release task (return to queue) with delay if specified

:param task_id: Task id
:param delay: Time in seconds before task will become ready again
:return: Task instance