import { PaymentConfig } from './PaymentConfig';
export declare type PaymentErrors = {
    [key in keyof PaymentConfig]?: DetailedPaymentError[];
};
export declare type DetailedPaymentError = {
    code: string;
    message: string;
};
export declare function addError(errors: PaymentErrors, key: keyof PaymentErrors, error: DetailedPaymentError): PaymentErrors;