import { AddEventBody, CustomerPropertiesBody, TransactionalEmailBody } from './interfaces/requestOptions';
export declare class ExponeaAPI {
    private wrapper;
    private projectToken;
    constructor(projectToken: string, apiKey: string, apiSecret: string);
    getSystemTime(): Promise<number>;
    updateCustomerProperties(properties: CustomerPropertiesBody): Promise<void>;
    addEvent(event: AddEventBody): Promise<void>;
    sendEmail(event: TransactionalEmailBody): Promise<void>;
}