/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
type PerfLoggerAPI = {
    start: (label: string) => void;
    end: (label: string) => void;
    log: (message: string) => void;
    async: <Result>(label: string, asyncFn: () => Result | Promise<Result>) => Promise<Result>;
};
export declare const PerfLogger: PerfLoggerAPI;
export {};
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