func RootPath() string {
	_, file, _, ok := runtime.Caller(0)
	if !ok {
		return "?"
	}
	return filepath.Dir(filepath.Dir(file))
}
func RootPath() string {
	_, file, _, ok := runtime.Caller(0)
	if !ok {
		return "?"
	}
	return filepath.Dir(filepath.Dir(file))
}
func RootPath ( ) string { _ , file , _ , ok := runtime . Caller ( 0 ) if ! ok { return " " } return filepath . Dir ( filepath . Dir ( file ) ) }
// RootPath returns a path of the root package.
RootPath returns a path of the root package .