/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * Extends an object with the *enumerable* and *own* properties of one or more source objects,
 * similar to Object.assign.
 *
 * @param dest The object which will have properties copied to it.
 * @param sources The source objects from which properties will be copied.
 */
/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */ export function extendObject(dest) {
    var sources = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        sources[_i - 1] = arguments[_i];
    }
    if (dest == null) {
        throw TypeError('Cannot convert undefined or null to object');
    }
    for (var _a = 0, sources_1 = sources; _a < sources_1.length; _a++) {
        var source = sources_1[_a];
        if (source != null) {
            for (var key in source) {
                if (source.hasOwnProperty(key)) {
                    dest[key] = source[key];
                }
            }
        }
    }
    return dest;
}
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