Get a core::task::Waker that does absolutely nothing.

Usage:

dummy_waker::dummy_waker()

MSRV: 1.40.0

Copyright (c) 2021 James Laver

Licensed under Apache License, Version 2.0 (https://www.apache.org/licenses/LICENSE-2.0), with LLVM Exceptions (https://spdx.org/licenses/LLVM-exception.html).

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