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