/********************************************************************************
 * Copyright (c) 2017-2021 TypeFox and others.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the Eclipse
 * Public License v. 2.0 are satisfied: GNU General Public License, version 2
 * with the GNU Classpath Exception which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 ********************************************************************************/
export declare function isObject(data: unknown): data is Record<PropertyKey, unknown>;
export type TypeOf<T> = T extends number ? 'number' : T extends string ? 'string' : T extends boolean ? 'boolean' : T extends bigint ? 'bigint' : T extends symbol ? 'symbol' : T extends Function ? 'function' : T extends object ? 'object' : 'undefined';
export declare function hasOwnProperty<K extends PropertyKey, T>(arg: unknown, key: K | K[], type?: TypeOf<T> | ((v: unknown) => v is T)): arg is Record<K, T>;
export declare function safeAssign<T extends {}>(target: T, partial: Partial<T>): T;
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