typed.go
func (t Typed) TimeIf(key string) (time.Time, bool) {
	value, exists := t[key]
	if exists == false {
		return time.Time{}, false
	}
	if n, ok := value.(time.Time); ok {
		return n, true
	}
	return time.Time{}, false
}
func (t Typed) TimeIf(key string) (time.Time, bool) {
	value, exists := t[key]
	if exists == false {
		return time.Time{}, false
	}
	if n, ok := value.(time.Time); ok {
		return n, true
	}
	return time.Time{}, false
}
// Returns an time.time at the key and whether
// or not the key existed and the value was a time.Time