export interface Debugger {
    (formatter: any, ...args: any[]): void;
    color: string;
    diff: number;
    enabled: boolean;
    log: (...args: any[]) => any;
    namespace: string;
    destroy: () => boolean;
    extend: (namespace: string, delimiter?: string) => Debugger;
}
export type IDebugger = Debugger;
declare const enable: (namespaces: string) => void;
declare const disable: () => string;
export { enable, disable };
export type LogLevel = 'trace' | 'debug' | 'log' | 'info' | 'warn' | 'error';
export type LogMethodName = 'log' | 'info' | 'warn' | 'error' | 'debug' | 'trace';
export interface Logger {
    log: Debugger;
    info: Debugger;
    warn: Debugger;
    error: Debugger;
    debug: Debugger;
    trace: Debugger;
    setLevel(level: LogLevel): void;
    pushContext(entry: string): void;
    popContext(): string | undefined;
    resetContext(): void;
}
export interface LoggerOptions {
    ns: string;
    context?: string;
    cache?: boolean;
}
export declare function getLogger(ns: string, context?: string, cache?: boolean): Logger;
export declare function getLogger(opts: LoggerOptions): Logger;
export declare function setLevel(pattern: string): void;
export declare function namespaces(): string[];
export declare function cb(ns?: string): (err: any, data?: any) => void;
export declare function promise(p: PromiseLike<any>, ns?: string): PromiseLike<any>;
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