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opt
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alt
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python38
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lib
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python3.8
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site-packages
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reactivex
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operators
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Editing: _sum.py
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from typing import Any, Callable, Optional from reactivex import Observable, compose from reactivex import operators as ops from reactivex.typing import Mapper def sum_( key_mapper: Optional[Mapper[Any, float]] = None ) -> Callable[[Observable[Any]], Observable[float]]: if key_mapper: return compose(ops.map(key_mapper), ops.sum()) def accumulator(prev: float, cur: float) -> float: return prev + cur return ops.reduce(seed=0, accumulator=accumulator) __all__ = ["sum_"]
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