// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package undeclared

func tuple() {
	undefinedTuple(b()) // want "undeclared name: undefinedTuple"
}

func b() (string, error) {
	return "", nil
}
