import { Config } from './config';
export declare class QRIS {
    protected sourceType: string;
    protected sourceValue: string;
    protected merchantName: string;
    protected merchantAddress: string;
    protected merchantPostalCode: string;
    protected amount: number | 0;
    protected feeCategory: string;
    protected fee: number | 0;
    protected terminalLabel: string;
    protected parsedString: string;
    protected resultString: string;
    constructor(config: Config);
    setMerchantName(merchantName: string): void;
    setMerchantAddress(merchantAddress: string): void;
    setMerchantPostalCode(merchantPostalCode: string): void;
    setAmount(amount: number): void;
    setFeeCategory(feeCategory: string): void;
    setFee(fee: number): void;
    setTerminalLabelCategory(terminalLabel: string): void;
    private sourceValueIsEmpty;
    private generate;
    private readQR;
    generateQR(): Promise<string>;
    generateQRBase64(): Promise<string>;
    generateQRTerminal(): Promise<string>;
    generateQRFile(output: string): Promise<string>;
}