Returns an instance of a BooleanCancelable that's already canceled.
Builder for BooleanCancelable.
Builder for BooleanCancelable.
is a function that will execute exactly once on canceling.
Builder for BooleanCancelable
Returns a weak version of BooleanCancelable that:
Returns a weak version of BooleanCancelable that:
cancel()
isCanceled
field only has the writes ordered, so
visibility after cancellation is not guaranteed