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c s t � | |�S )N)r3 )r( r) )r* r r �helper� s z contextmanager.<locals>.helper)r )r* rF r )r* r r � s c s t � �� fdd��}|S )a� @asynccontextmanager decorator.
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c s � �fdd�}|S )Nc � s �� | ||�I d H S )Nr )r r> rZ )r[ r\ r r r] ' s z@AsyncExitStack._create_async_exit_wrapper.<locals>._exit_wrapperr )r[ r\ r] r )r[ r\ r �_create_async_exit_wrapper% s z)AsyncExitStack._create_async_exit_wrapperc s � ^�� � ��fdd�}|S )Nc � s �� ��I d H d S )Nr )r r> rZ )r( r_ r) r r r] . s z>AsyncExitStack._create_async_cb_wrapper.<locals>._exit_wrapperr )r( r) r] r )r( r_ r) r �_create_async_cb_wrapper+ s z'AsyncExitStack._create_async_cb_wrapperc � s. t |�}|j}|�|�I dH }| �||� |S )z�Enters the supplied async context manager.
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z AsyncExitStack.push_async_exitc O s~ t | �dkr| ^}}} n>| s&td��n0d|krB|�d�}| ^}} ntdt | �d ��|j|f| �|�}||_|�|d� |S )zfRegisters an arbitrary coroutine function and arguments.
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r aO Context manager that does no additional processing.
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