type context.CancelCauseFunc

9 uses

	context (current package)
		context.go#L255: type CancelCauseFunc func(cause error)
		context.go#L268: func WithCancelCause(parent Context) (ctx Context, cancel CancelCauseFunc) {

	github.com/gotd/td/rpc
		engine.go#L32: 	reqCancel context.CancelCauseFunc

	net/http
		transport.go#L105: 	reqCanceler map[*Request]context.CancelCauseFunc
		transport.go#L528: 	cancel context.CancelCauseFunc
		transport.go#L751: func awaitLegacyCancel(ctx context.Context, cancel context.CancelCauseFunc, req *Request) {
		transport.go#L923: func (t *Transport) prepareTransportCancel(req *Request, origCancel context.CancelCauseFunc) context.CancelCauseFunc {
		transport.go#L938: 		t.reqCanceler = make(map[*Request]context.CancelCauseFunc)