import { PaymentMethod, Currency, MobileOperator } from '../types';
import { PaymentRequest } from '../interfaces';
export declare class VokoPaymentRequest implements PaymentRequest {
    readonly amount: number;
    readonly currency: Currency;
    readonly phoneNumber?: string;
    readonly email?: string;
    readonly fullName?: string;
    readonly reference: string;
    readonly description?: string;
    readonly callbackUrl?: string;
    readonly metadata: Record<string, any>;
    readonly paymentMethod?: PaymentMethod;
    readonly operator?: MobileOperator;
    readonly accountNumber?: string;
    readonly otp?: string;
    readonly timestamp: string;
    constructor(data: PaymentRequest);
    private validateAmount;
    private normalizePhoneNumber;
    private validate;
    private isValidEmail;
    toJSON(): Record<string, any>;
}