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__aenter__' s z&AbstractAsyncContextManager.__aenter__c � s dS r r r r r r � __aexit__+ s z%AbstractAsyncContextManager.__aexit__c C s | t krt�|dd�S tS )Nr- r. )r r r r! r" r r r r% 0 s
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c @ s e Zd ZdZdd� Zdd� ZdS )r zJA base class or mixin that enables context managers to work as decorators.c C s | S )a6 Return a recreated instance of self.
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z'_AsyncGeneratorContextManager.__aexit__N)r& r' r( r) r- r. r r r r rL � s rL c s t � �� fdd��}|S )a� @contextmanager decorator.
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@contextmanager
def some_generator(<arguments>):
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<body>
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c s t � | |�S r0 )r> r1 �r5 r r �helper� s z contextmanager.<locals>.helperr �r5 rT r rS r r � s c s t � �� fdd��}|S )a� @asynccontextmanager decorator.
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@asynccontextmanager
async def some_async_generator(<arguments>):
<setup>
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finally:
<cleanup>
This makes this:
async with some_async_generator(<arguments>) as <variable>:
<body>
equivalent to this:
<setup>
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c C s
t || �S r0 r rm r r r �_create_async_exit_wrapper& s z)AsyncExitStack._create_async_exit_wrapperc s � ��fdd�}|S )Nc � s �� ��I d H d S r0 r rq rs r r ru , s z>AsyncExitStack._create_async_cb_wrapper.<locals>._exit_wrapperr rv r rs 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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r2 | �|d� Y nX | �||� |S )a# Registers a coroutine function with the standard __aexit__ method
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