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firestar5683
31 lines
852 B
Python
31 lines
852 B
Python
from typing import Any, Callable, Optional, TypeVar
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from reactivex import GroupedObservable, Observable, typing
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from reactivex.subject import Subject
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_T = TypeVar("_T")
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_TKey = TypeVar("_TKey")
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_TValue = TypeVar("_TValue")
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# pylint: disable=import-outside-toplevel
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def group_by_(
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key_mapper: typing.Mapper[_T, _TKey],
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element_mapper: Optional[typing.Mapper[_T, _TValue]] = None,
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subject_mapper: Optional[Callable[[], Subject[_TValue]]] = None,
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) -> Callable[[Observable[_T]], Observable[GroupedObservable[_TKey, _TValue]]]:
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from reactivex import operators as ops
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def duration_mapper(_: GroupedObservable[Any, Any]) -> Observable[Any]:
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import reactivex
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return reactivex.never()
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return ops.group_by_until(
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key_mapper, element_mapper, duration_mapper, subject_mapper
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)
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__all__ = ["group_by_"]
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