import { type BrowserActionInput, type BrowserWireResult } from '@xopcai/browser-control-contract';
import type { EndpointToolRuntime } from '../../endpoint-tools/index.js';
export interface RealtimeExtensionProviderConfig {
    connectionTimeout?: number;
    commandTimeout?: number;
}
export declare class RealtimeExtensionBrowserProvider {
    private readonly runtime;
    readonly name = "extension";
    private readonly connectionTimeout;
    private readonly commandTimeout;
    constructor(runtime: EndpointToolRuntime, config?: RealtimeExtensionProviderConfig);
    start(): Promise<void>;
    waitForConnection(timeoutMs?: number): Promise<void>;
    send(input: BrowserActionInput, timeoutMs?: number, visualFallback?: boolean): Promise<BrowserWireResult>;
    isConnected(): boolean;
    getConnectionStatus(): {
        socketConnected: boolean;
        connected: boolean;
        protocolVersion: number;
        expectedProtocolVersion: number;
        extensionVersion: string;
        principalId: string;
        endpointCount: number;
        selectionRequired: boolean;
        transport: "gateway-realtime";
    };
    shutdown(): Promise<void>;
    private endpointForInput;
    private defaultEndpoint;
    private browserEndpoints;
}