async def test_take_empty() -> None:
xs = AsyncObservable.empty()
values = []
async def asend(value) -> None:
values.append(value)
ys = take(42, xs)
with pytest.raises(CancelledError):
await run(ys, AnonymousAsyncObserver(asend))
assert values == []
def empty(cls) -> 'ChainedAsyncObservable':
return ChainedAsyncObservable(AsyncObservable.empty())
def default_resolver(root, info):
func = getattr(root, 'importantEmail', None)
if func:
func = get_unbound_function(func)
return func()
return AsyncObservable.empty()
