import MicroEmitter from './micro-emitter';
declare const ERROR = "error";
declare const WARN = "warn";
declare const INFO = "info";
declare const DEBUG = "debug";
declare type EventNames = typeof ERROR | typeof WARN | typeof INFO | typeof DEBUG;
declare type EmittedEvents = {
    [name in EventNames]: (logArea: string, message: string, context?: Record<string, any>, options?: Record<string, any>) => void;
};
declare type LogParams = Parameters<EmittedEvents[typeof ERROR]>;
/**
 * The shared js log, which allows posting messages and listening to them.
 * @example
 * // to log
 * ```ts
 * log.warn("Area", "Warning... such and so...", { data: context});
 * ```
 * // to listen to all logs on the console
 *
 * ```ts
 * log.on(log.DEBUG, console.debug.bind(console));
 * log.on(log.INFO, console.info.bind(console));
 * log.on(log.WARN, console.info.bind(console));
 * log.on(log.ERROR, console.error.bind(console));
 * ```
 */
export declare class Log extends MicroEmitter<EmittedEvents> {
    /**
     * The Debug event constant.
     */
    readonly DEBUG = "debug";
    /**
     * The info event constant.
     */
    readonly INFO = "info";
    /**
     * The warn event constant.
     */
    readonly WARN = "warn";
    /**
     * the error event constant.
     */
    readonly ERROR = "error";
    constructor();
    /**
     * @param area - The area of the code e.g. "Streaming" or "TransportBatch".
     * @param message - The error message e.g. "Something has gone wrong".
     * @param context - (optional) Data associated with the event.
     * @param options - (optional) Options object
     */
    error(...args: LogParams): this;
    /**
     * @param area - The area of the code e.g. "Streaming" or "TransportBatch".
     * @param message - The error message e.g. "Something has gone wrong".
     * @param context - (optional) Data associated with the event.
     * @param options - (optional) Options object
     */
    warn(...args: LogParams): this;
    /**
     * @param area - The area of the code e.g. "Streaming" or "TransportBatch".
     * @param message - The error message e.g. "Something has gone wrong".
     * @param context - (optional) Data associated with the event.
     * @param options - (optional) Options object
     */
    info(...args: LogParams): this;
    /**
     * @param area - The area of the code e.g. "Streaming" or "TransportBatch".
     * @param message - The error message e.g. "Something has gone wrong".
     * @param context - (optional) Data associated with the event.
     * @param options - (optional) Options object
     */
    debug(...args: LogParams): this;
}
declare const _default: Log;
export default _default;