Types and Traits for working with asynchronous tasks.
The context of an asynchronous task.
RawWakerallows the implementor of a task executor to create a
Wakerwhich provides customized wakeup behavior.
Wakeris a handle for waking up a task by notifying its executor that it is ready to be run.
Indicates whether a value is available or if the current task has been scheduled to receive a wakeup instead.