import { URL } from "node:url";
import { DebugLoggerFunction } from "node:util";
import Dats, { Options } from "./index.js";
import { Socket } from "./socket.js";
export default class DatsMock extends Dats {
    constructor(config: Options);
    get metrics(): string[];
    cleanMetrics(): void;
    hasSent(regex: RegExp | string): boolean;
}
export declare class SocketMock extends Socket {
    private _output;
    constructor(url: URL, onError?: (error: Error) => void, debug?: DebugLoggerFunction);
    connect(): Promise<boolean>;
    send(data: string): void;
    close(): Promise<void>;
    cleanMetrics(): void;
    get metrics(): string[];
}