Attempts to cancel the task. The task may still succeed if it is unable to be canceled. If the task is canceled, then its [[run]] function will reject the promise. If [[cancel]] is called before [[run]], then [[run]] must immediately reject the returned promise. If [[cancel]] is called after [[run]], then nothing happens.
ProtectedgetProtectedlogDescribes the task for the purpose of logging.
Runs the unit of work until it either succeeds and fulfills the promise or fails and rejects the promise. Where possible it should listen for the cancellation signal, stop working, and reject the promise. If run is called more than once, it should immediately reject the promise.
[[RunnableTask]] Task wrapper for any Promised-operation