my_custom_fx

localStorage.setItem("userTypes", `class MyCustomFx {
    constructor(_key) {
        this.key = _key;
    }
    _read() {
        this._io = {};
        this._debug = {};
    }
    decode(src)
    {
        var len = src.length;
        var dest = new Uint8Array(len);
        var seed = this.key
        for (var i = 0; i < len; i++) {
            seed = (seed * 33 + 153) >> 0; // prevents overflow from uint32
            dest[i] = ( src[i] ^ seed );
        }
        return dest;
    }
}
this.MyCustomFx = MyCustomFx;`);