import { RequestClient } from '@segment/actions-core';
interface IntercomContact {
    id: string;
}
interface SearchPayload {
    external_id?: string;
    email?: string;
}
export declare function getUniqueIntercomContact(request: RequestClient, payload: SearchPayload): Promise<IntercomContact | undefined>;
export declare const convertValidTimestamp: <Value = unknown>(value: Value) => Value | number;
export {};
