export declare class FastAPI {
    /** The options that were set. */
    readonly options: FastAPIOptions;
    /**
     * Initiates the FastAPI class.
     * @param options
     */
    constructor(options: FastAPIOptions);
    /**
     * Function to run speed test.
     * @returns Promise
     */
    runTest(): Promise<SpeedTestResult>;
    /**
     * Function to lauch Puppeteer browser.
     * This function will pick correct ```executablePath``` for Linux systems based on ARM processors
     * @returns Puppeteer browser
     */
    private launchBrowser;
}
export declare enum SpeedUnits {
    Bps = "Bps",
    KBps = "KBps",
    MBps = "MBps",
    GBps = "GBps",
    bps = "bps",
    Kbps = "Kbps",
    Mbps = "Mbps",
    Gbps = "Gbps"
}
export interface SpeedTestResult {
    /** Network ping. */
    ping?: number;
    /** Network download speed. */
    downloadSpeed: number;
    /** Network upload speed. */
    uploadSpeed?: number;
    /** Network ping unit. */
    pingUnit?: string;
    /** Network download speed unit. */
    downloadUnit: string;
    /** Network upload speed unit. */
    uploadUnit?: string;
    /** Location(s) of test server(s). */
    servers: string[];
}
export interface FastAPIOptions {
    /** To wait for the upload speed result. */
    measureUpload?: boolean;
    /** The resulting unit of upload speed. */
    uploadUnit?: SpeedUnits;
    /** The resulting unit of download speed. */
    downloadUnit?: SpeedUnits;
    /** Limit how long the speed test can run. */
    timeout?: number;
    /** Path to the Chrome startup file. You can use it if Puppeteer failed to start. */
    executablePath?: string;
}