export type LogLevel = 'log' | 'info' | 'error' | 'warn' | 'debug' | 'verbose' | 'fatal';
export type NonEmptyString<S extends string> = S extends '' ? never : S;
export interface LogMessage<C extends string = string> {
    level: LogLevel;
    args: unknown[];
    context: NonEmptyString<C>;
    timestamp: string;
}
interface LoggingEvents {
    log: [LogMessage];
}
export interface LoggingEventEmitter {
    on<K extends keyof LoggingEvents>(event: K, listener: (...args: LoggingEvents[K]) => void): this;
    emit<K extends keyof LoggingEvents>(event: K, ...args: LoggingEvents[K]): boolean;
}
export declare const loggingEventEmitter: LoggingEventEmitter;
export declare class Logger<C extends string = string> {
    private context;
    constructor(context: NonEmptyString<C>);
    private emitLog;
    log(...args: unknown[]): void;
    info(...args: unknown[]): void;
    warn(...args: unknown[]): void;
    debug(...args: unknown[]): void;
    verbose(...args: unknown[]): void;
    fatal(...args: unknown[]): void;
    error(...args: unknown[]): void;
}
export {};
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