I’m jumping out of order a bit today, to cover a more basic function first, before the more advanced version. Bear with me. func WithCancel func WithCancel(parent Context) (ctx Context, cancel CancelFunc) WithCancel returns a derived context that points to the parent context but has a new Done channel. The returned context’s Done channel is closed when the returned cancel function is called or when the parent context’s Done channel is closed, whichever happens first.
