1 // Copyright 2021 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package foo_test 6 7 func Foo(x int) { 8 } 9 10 func Example() { 11 fmt.Println("Hello, world!") 12 // Output: Hello, world! 13 } 14