handler.go
func (h HandlerFunc) CtxServeHTTP(ctx context.Context, w http.ResponseWriter, r *http.Request) {
	h(ctx, w, r)
}
func (h HandlerFunc) CtxServeHTTP(ctx context.Context, w http.ResponseWriter, r *http.Request) {
	h(ctx, w, r)
}
func ( h HandlerFunc ) CtxServeHTTP ( ctx context . Context , w http . ResponseWriter , r * http . Request ) { h ( ctx , w , r ) }
// CtxServeHTTP implements Handler.CtxServeHTTP
CtxServeHTTP implements Handler . CtxServeHTTP