import type { VextMiddleware } from "../../types/middleware.js";
export interface VextFrontendDevEvent {
    type: "frontend:built" | "frontend:error" | "render:reload";
    action?: "fast-refresh" | "style" | "reload" | "prompt" | "auto" | "off";
    entry?: string;
    styles?: string[];
    buildId?: string;
    files?: string[];
    message?: string;
    replay?: boolean;
}
export interface VextFrontendDevEventBus {
    middleware: VextMiddleware;
    publish(event: VextFrontendDevEvent): void;
    close(): void;
    getClientCount(): number;
}
export declare const VEXT_FRONTEND_DEV_EVENT_PATH = "/__vext/dev/events";
export declare function createFrontendDevEventBus(): VextFrontendDevEventBus;