// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.

export default function keyMirror<T extends {}>(obj: T): { [K in keyof T]: K } {
    if (!(obj instanceof Object && !Array.isArray(obj))) {
        throw new Error('keyMirror(...): Argument must be an object.');
    }

    const ret: any = {};
    for (const key in obj) {
        if (Object.prototype.hasOwnProperty.call(obj, key)) {
            continue;
        }

        ret[key] = key;
    }
    return ret;
}