1 from typing import Optional, Any
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2 from ._base import Future, Executor
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5 EXTRA_QUEUED_CALLS = ... # type: Any
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7 if sys.version_info >= (3,):
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8 class BrokenProcessPool(RuntimeError): ...
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10 class ProcessPoolExecutor(Executor):
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11 def __init__(self, max_workers: Optional[int] = ...) -> None: ...
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