export declare class DonationPaymentEvent {
    timestamp: Date;
    name: string | null;
    email: string;
    memberId: string | null;
    amount: number;
    currency: string;
    donationMessage: string | null;
    attributionId: string | null;
    attributionUrl: string | null;
    attributionType: string | null;
    referrerSource: string | null;
    referrerMedium: string | null;
    referrerUrl: string | null;
    constructor(data: Omit<DonationPaymentEvent, 'timestamp'>, timestamp: Date);
    static create(data: Omit<DonationPaymentEvent, 'timestamp'>, timestamp?: Date): DonationPaymentEvent;
}