/** * @license * Copyright Google LLC 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 */ /** * Implement this interface if you want to provide different logging * output from the standard ConsoleLogger. */ export interface Logger { level: LogLevel; debug(...args: string[]): void; info(...args: string[]): void; warn(...args: string[]): void; error(...args: string[]): void; } export declare enum LogLevel { debug = 0, info = 1, warn = 2, error = 3 }