The context package exports two variables: Variables var Canceled = errors.New("context canceled") Canceled is the error returned by [Context.Err] when the context is canceled for some reason other than its deadline passing. var DeadlineExceeded error = deadlineExceededError{} DeadlineExceeded is the error returned by [Context.Err] when the context is canceled due to its deadline passing. That’s it. These are the only two types of errors that a context’s Err() method is allowed to return.
