for i, s := range a {
	// type of i is int
	// type of s is string
	// s == a[i]
	g(i, s)
}

var key string
var val interface{}  // element type of m is assignable to val
m := map[string]int{"mon":0, "tue":1, "wed":2, "thu":3, "fri":4, "sat":5, "sun":6}
for key, val = range m {
	h(key, val)
}
// key == last map key encountered in iteration
// val == map[key]

var ch chan Work = producer()

for i, s := range a {
	// type of i is int
	// type of s is string
	// s == a[i]
	g(i, s)
}

var key string
var val interface{}  // element type of m is assignable to val
m := map[string]int{"mon":0, "tue":1, "wed":2, "thu":3, "fri":4, "sat":5, "sun":6}
for key, val = range m {
	h(key, val)
}
// key == last map key encountered in iteration
// val == map[key]

var ch chan Work = producer()

pkg time, const Minute = 60000000000
pkg time, const Monday = 1
pkg time, const Nanosecond = 1
pkg time, const November = 11
pkg time, const October = 10
pkg time, const RFC1123 = "Mon, 02 Jan 2006 15:04:05 MST"
pkg time, const RFC1123Z = "Mon, 02 Jan 2006 15:04:05 -0700"
pkg time, const RFC3339 = "2006-01-02T15:04:05Z07:00"
pkg time, const RFC3339Nano = "2006-01-02T15:04:05.999999999Z07:00"