export declare const logger: {
    warn: (msg: any) => void;
    error: (msg: any) => void;
    notice: (msg: any) => void;
    info: (msg: any) => void;
    verbose: (msg: any) => false | void;
    debug: (msg: any) => false | void;
    measure: (start: [number, number], milestone: string) => void;
};
export declare const setLogLevel: (level: string) => void;
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