type context.canceler

5 uses

	context (current package)
		context.go#L250: func propagateCancel(parent Context, child canceler) {
		context.go#L271: 				p.children = make(map[canceler]struct{})
		context.go#L316: func removeChild(parent Context, child canceler) {
		context.go#L330: type canceler interface {
		context.go#L349: 	children map[canceler]struct{} // set to nil by the first cancel call