export interface PaymentAttributes {
    amount: string;
    auth: boolean;
    currency: string;
    hash: string;
    invoice: string;
    merchant: string;
    merchant_id?: string;
    recurring: boolean;
    send_email?: string;
    display_name?: string;
    domain_name?: string;
}
export interface AuthorizePaymentRequestPayload extends PaymentAttributes {
    token: string;
}
export declare const objectToQueryString: (obj: any) => string;
export declare const getMerchantSession: (validationUrl: string, paymentAttributes: PaymentAttributes, baseUrl: string) => Promise<any>;
export declare const authorizePayment: (payload: AuthorizePaymentRequestPayload, url: string) => Promise<any>;