export type Level = 'debug' | 'info' | 'warn' | 'error';
export declare const httpRequestMessagePrefix = "HTTP request - ";
export declare function formatMessage(level: Level, message: string, params: {
    error?: Error;
    [name: string]: any;
}, format: string, now: Date): string;
export declare function shouldLog(level: Level, configLogLevel: string): boolean;