import type { AppiumServerConfig } from '../config/types';
/**
 * AppiumServer manages the Appium WebDriver server lifecycle.
 * Handles:
 * - Starting/stopping the Appium server
 * - Health checks via HTTP status endpoint
 * - Port allocation if conflicts
 * - Process management
 */
export declare class AppiumServer {
    private config;
    private process;
    private url;
    private retries;
    private maxRetries;
    constructor(config?: Partial<AppiumServerConfig>);
    /**
     * Start the Appium server.
     * If remoteUrl is configured, skip local server startup.
     * If port is in use, try next port.
     */
    start(): Promise<void>;
    /**
     * Stop the Appium server.
     */
    stop(): Promise<void>;
    /**
     * Get the server URL.
     */
    getUrl(): string;
    /**
     * Check if server is healthy via HTTP status endpoint.
     */
    isHealthy(): Promise<boolean>;
    /**
     * Start the Appium server process.
     * Appium is expected to be installed globally or via npm.
     */
    private startServerProcess;
    /**
     * Wait for the server to become healthy.
     * Retries with exponential backoff.
     */
    private waitForHealth;
}
/**
 * Check if Appium is installed on the system.
 * Returns true if 'appium --version' succeeds.
 */
export declare function isAppiumInstalled(): boolean;
/**
 * Get installed Appium version.
 * Returns the version string or null if Appium is not installed.
 */
export declare function getAppiumVersion(): string | null;
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