public static function valuesOf()
    {
        $enum   = new \ReflectionClass(get_called_class());
        $values = [];
        foreach ($enum->getStaticProperties() as $name => $instance) {
            $values[$name] = $instance->value;
        }

        return $values;
    }
public static function valuesOf()
    {
        $enum   = new \ReflectionClass(get_called_class());
        $values = [];
        foreach ($enum->getStaticProperties() as $name => $instance) {
            $values[$name] = $instance->value;
        }

        return $values;
    }
returns a list of values for given enum

@api
@return  mixed[]