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    Pythonlanggraphstream_muxStreamMuxafail
    Methodā—Since v1.1

    afail

    Copy
    afail(
        self,
        err: BaseException,
    ) -> None
    View source on GitHub

    Parameters

    NameTypeDescription
    err*BaseException

    The exception that ended the run.

    Fail on the async lane.

    Cancels every scheduled task across all transformers, awaits them to completion, then runs each transformer's afail hook and auto-fails channels and the main event log.