/**
 *
 * @param {string} merchant_account
 * @param {string} merchant_name
 * @param {string} merchant_city
 * @param {number} transaction_amount
 * @param {string} info_adic
 * @param {boolean} return_qrcode
 */
export declare function Pix(merchant_account: string, merchant_name: string, merchant_city: string, transaction_amount: number, info_adic: string, return_qrcode?: boolean): Promise<string>;