/**
 * @file Browser DevTools integration for @doeixd/machine
 * @description Connects state machines to browser extension for visualization and debugging
 */
import { runMachine, type AsyncEvent, type AsyncMachine } from './index';
/**
 * DevTools interface for browser extension communication
 */
export interface MachineDevTools {
    init(context: unknown): void;
    send(message: {
        type: string;
        payload: unknown;
    }): void;
}
/**
 * Augment Window interface to include DevTools extension
 */
declare global {
    interface Window {
        __MACHINE_DEVTOOLS__?: MachineDevTools;
    }
}
/**
 * Async runner that records the latest dispatched event for DevTools messages.
 *
 * @typeParam M - Async machine controlled by the runner.
 */
export type DevToolsRunner<M extends AsyncMachine<any>> = ReturnType<typeof runMachine<M>> & {
    lastEvent?: AsyncEvent<M>;
};
/**
 * Connects a state machine to the browser DevTools extension
 * @template M - The async machine type
 * @param initialMachine - The initial machine instance
 * @returns A runner with DevTools integration
 *
 * @example
 * const runner = connectToDevTools(createAuthMachine());
 * runner.dispatch({ type: 'login', args: ['user'] });
 */
export declare function connectToDevTools<M extends AsyncMachine<any>>(initialMachine: M): DevToolsRunner<M>;
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