public static function getMapOfType(k:Dynamic):Dynamic {
        if( Std.is(k,Int) )
            return new Map<Int,Dynamic>();
        else if( Std.is(k,String) )
            return new Map<String,Dynamic>();
        else if( Reflect.isEnumValue(k) )
            return new Map<EnumValue,Dynamic>();
        else if( Reflect.isObject(k) )
            return new Map<{},Dynamic>();
        else
            throw "invalid map key type found!";
    }