declare const SPrinter: {
    /**
     * This function connects to the printer
     * @example
     * // returns { success: true }
     * await SPrinter.connect();
     * @returns {Promise<any>} success message.
     */
    connect: () => Promise<any>;
    /**
     * This function disconnects the printer
     * @example
     * // returns { success: true }
     * await SPrinter.disconnect();
     * @returns {Promise<any>} success message.
     */
    disconnect: () => Promise<any>;
    /**
     * This function resets any printing adjustments sent(e.g align or font size)
     * @example
     * // returns { success: true }
     * await SPrinter.reset();
     * @returns {Promise<any>} success message.
     */
    reset: () => Promise<any>;
    /**
     * This function runs the default test print
     * @example
     * // returns { success: true }
     * await SPrinter.testPrint();
     * @returns {Promise<any>} success message.
     */
    testPrint: () => Promise<any>;
    /**
     * This function returns the printer specs including model, paper, printer version and serial no
     * @example
     * // returns {DeviceModel: 'T2-GPIOINT\n', PrintPaper: '80mm', PrinterVersion: '1.05\n', SerialNo: 'XXXXXXXXXXXXXXXXXXXX'}
     * await SPrinter.getPrinterSpecs();
     * @returns {Promise<any>} Spec object.
     */
    getPrinterSpecs: () => Promise<any>;
    /**
     * This function returns the printer current status such as printing or running
     * @example
     * // returns "Printer is running"
     * await SPrinter.getPrinterStatus();
     * @returns {Promise<String>} success message.
     */
    getPrinterStatus: () => Promise<any>;
    /**
     * This function cuts the paper
     * @example
     * // returns { success: true }
     * await SPrinter.cutPaper();
     * @returns {Promise<any>} success message.
     */
    cutPaper: () => Promise<any>;
    /**
     * This function prints a given text
     * @param {String} text - text to print
     * @example
     * // returns { success: true }
     * await SPrinter.printText("Example of printing");
     * @returns {Promise<any>} success message.
     */
    printText: (text: String) => Promise<any>;
    /**
     * This function prints a given text with styling of text
     * @param {String} text - text to print
     * @param {Number} size - size of text
     * @param {boolean} isBold - whether text is bold
     * @param {boolean} isUnderline - whether text is underelined
     * @param {String} typeface - typeface of text
     * @example
     * // returns { success: true }
     * await SPrinter.printTextCustom("Example of custom printing", "28", true, true, "gh");
     * @returns {Promise<any>} success message.
     */
    printTextCustom: (text: String, size: Number, isBold: boolean, isUnderline: boolean, typeface: String) => Promise<any>;
    /**
     * This function prints a number of empty lines
     * @param {Number} num - num of empty lines
     * @example
     * // returns { success: true }
     * await SPrinter.printEmptyLines(3);
     * @returns {Promise<any>} success message.
     */
    printEmptyLines: (num: Number) => Promise<any>;
    /**
     * This function sets the alignment of next print
     * @param {ALIGN} align - align to set
     * @example
     * // returns { success: true }
     * await SPrinter.setAlign(Constants.Align.CENTER);
     * @returns {Promise<any>} success message.
     */
    setAlign: (align: Number) => Promise<any>;
    /**
     * This function sets the font size of next print
     * @param {Number} fontSize - font size to set
     * @example
     * // returns { success: true }
     * await SPrinter.setFontSize(28);
     * @returns {Promise<any>} success message.
     */
    setFontSize: (fontSize: Number) => Promise<any>;
    /**
     * This function prints a barcode given data
     * @param {String} data - data of barcode
     * @param {BARCODE_TYPE} symbology - symbol of barcode type
     * @param {Number} height - height of barcode
     * @param {Number} width - width of barcode
     * @param {BARCODE_TEXT_POSITION} textPosition - position of text
     * @example
     * // returns { success: true }
     * await SPrinter.printBarCode("SecretABC", Constants.Barcode.CODE39, 90, 10, Constants.BarcodeText.ABOVE);
     * @returns {Promise<any>} success message.
     */
    printBarCode: (data: String, symbology: Number, height: Number, width: Number, textPosition: Number) => Promise<any>;
    /**
     * This function prints a qr code given data
     * @param {String} data - data of qr code
     * @param {Number} modulesize - module size of qr code
     * @param {QR_ERROR_LEVEL} errorlevel - error level of qr code
     * @example
     * // returns { success: true }
     * await SPrinter.printQRCode("URL TO SOME SECRET", 10, 15);
     * @returns {Promise<any>} success message.
     */
    printQRCode: (data: String, modulesize: Number, errorlevel: Number) => Promise<any>;
    /**
     * This function prints a table given data
     * @param {String[]} texts - an array of texts to print
     * @param {Number[]} width - an array defining width of corresponding text
     * @param {Number[]} align - an array defining align of corresponding text
     * @example
     * // returns { success: true }
     * await SPrinter.printTable(['a','b','c'], [3,3,5], [1,2,0]);
     * @returns {Promise<any>} success message.
     */
    printTable: (texts: String[], width: Number[], align: Number[]) => Promise<any>;
    /**
     * This function prints an image given the base 64 string
     * @param {String} base64 - base64 string of image
     * @example
     * // returns { success: true }
     * await SPrinter.printBase64Image('some base 64 image string');
     * @returns {Promise<any>} success message.
     */
    printBase64Image: (base64: String) => Promise<any>;
};
declare const Constants: {
    Align: {
        /** @type {Number} LEFT - left align */
        LEFT: number;
        /** @type {Number} CENTER - center align */
        CENTER: number;
        /** @type {Number} RIGHT - right align */
        RIGHT: number;
    };
    Barcode: {
        /** @type {Number} UPCA */
        UPCA: number;
        /** @type {Number} UPCE */
        UPCE: number;
        /** @type {Number} JAN13 */
        JAN13: number;
        /** @type {Number} JAN8 */
        JAN8: number;
        /** @type {Number} CODE39 */
        CODE39: number;
        /** @type {Number} ITF */
        ITF: number;
        /** @type {Number} CODABAR */
        CODABAR: number;
        /** @type {Number} CODE93 */
        CODE93: number;
        /** @type {Number} CODE128 */
        CODE128: number;
    };
    BarcodeText: {
        /** @type {Number} NO_PRINT - don't print text of barcode */
        NO_PRINT: number;
        /** @type {Number} ABOVE - print text of barcode above barcode */
        ABOVE: number;
        /** @type {Number} BELOW - don't print text of barcode below barcode */
        BELOW: number;
        /** @type {Number} BOTH - don't print text of barcode above and below barcode */
        BOTH: number;
    };
    QRError: {
        /** @type {Number} L - QR Code error level of L ~ 7% */
        L: number;
        /** @type {Number} M - QR Code error level of M ~ 15% */
        M: number;
        /** @type {Number} Q - QR Code error level of Q ~ 25% */
        Q: number;
        /** @type {Number} H - QR Code error level of H ~ 30% */
        H: number;
    };
};
export { SPrinter, Constants };