-- .Play --
package main

import (
	"fmt"
)

func main() {
	fmt.Println("Hello, world!")
}
-- .Output --
Hello, world!
-- Limiter.Play --
package main

import (
	"fmt"
	tm "time"

	r "golang.org/x/time/rate"
)

func main() {
	// Uses fmt, time and rate.
	l := r.NewLimiter(r.Every(tm.Second), 1)
	fmt.Println(l)
}