export type LogLevel = 'debug' | 'info' | 'warn' | 'error' | 'silent';
export declare class Logger {
    private levelOrder;
    private level;
    private sink;
    constructor(level?: LogLevel, sink?: (level: LogLevel, msg: string, ...args: any[]) => void);
    setLevel(l: LogLevel): void;
    private shouldLog;
    debug(msg: string, ...args: any[]): void;
    info(msg: string, ...args: any[]): void;
    warn(msg: string, ...args: any[]): void;
    error(msg: string, ...args: any[]): void;
}
export declare const logger: Logger;
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