From type/IO/Pipe

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method proc(IO::Pipe: --> Proc:D)

Returns the Proc object from which the pipe originates.

From type/X/Proc/Async

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method proc(X::Proc::Async:D --> Proc::Async)

Returns the object that threw the exception.

From type/X/Proc/Unsuccessful

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method proc(X::Proc::Unsuccessful:D --> Proc)

Returns the object that threw the exception.