venv added, updated
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from typing import Callable, Optional, TypeVar
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from reactivex import Observable, abc, to_async
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_T = TypeVar("_T")
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def start_(
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func: Callable[[], _T], scheduler: Optional[abc.SchedulerBase] = None
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) -> Observable[_T]:
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"""Invokes the specified function asynchronously on the specified
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scheduler, surfacing the result through an observable sequence.
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Example:
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>>> res = reactivex.start(lambda: pprint('hello'))
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>>> res = reactivex.start(lambda: pprint('hello'), rx.Scheduler.timeout)
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Args:
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func: Function to run asynchronously.
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scheduler: [Optional] Scheduler to run the function on. If
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not specified, defaults to Scheduler.timeout.
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Remarks:
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The function is called immediately, not during the subscription
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of the resulting sequence. Multiple subscriptions to the
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resulting sequence can observe the function's result.
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Returns:
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An observable sequence exposing the function's result value,
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or an exception.
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"""
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return to_async(func, scheduler)()
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__all__ = ["start_"]
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