A module with a single package that is below the module root.

-- go.mod --
module example.com/single

-- README.md --
This is the README for a test module.

-- LICENSE --
$MITLicense

-- pkg/file1.go --
// Package pkg is a sample package.
package pkg

import 	"time"

// Version is the same as the module version.
const Version = "v1.0.0"

// F is a function.
func F(t time.Time, s string) (T, u) {
	x := 3
	x = C
}

// G is new in v1.1.0.
func G() int {
	return 3
}

-- pkg/file2.go --
package pkg

var V = Version

type T int

type u int

-- pkg/example_test.go --
package pkg_test

// Example for the package.
func Example() {
	fmt.Println("hello")
	// Output: hello
}

// A function example.
func ExampleF() {
	pkg.F()
}