'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _immutable = require('immutable');

exports.default = function (engine) {
    var whitelist = arguments.length <= 1 || arguments[1] === undefined ? [] : arguments[1];

    return {
        load: function load() {
            return engine.load().then(function (result) {
                whitelist.forEach(function (key) {
                    result[key] = (0, _immutable.fromJS)(result[key]);
                });
                return result;
            });
        },
        save: function save(state) {
            return engine.save(state);
        }
    };
};
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