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# -*- coding: utf-8 -*-
import asyncio
# 只用于持有Task的引用
_task_refs = set()
def create_task_with_ref(*args, **kwargs):
"""创建Task并保持引用，防止协程执行完之前就被GC"""
task = asyncio.create_task(*args, **kwargs)
_task_refs.add(task)
task.add_done_callback(_task_refs.discard)
return task