import { FBEvent, UserData, FBClient, FBClientParamBuilder } from '../types';
import { Payload } from './generated-types';
import { Settings } from '../generated-types';
import { Analytics } from '@segment/analytics-next';
export declare function send(client: FBClient, clientParamBuilder: FBClientParamBuilder | undefined, payload: Payload, settings: Settings, analytics: Analytics): Promise<void>;
export declare function formatFBEvent(payload: Payload): FBEvent;
export declare function formatUserData(userData: Payload['userData'], clientParamBuilder: FBClientParamBuilder | undefined): Promise<UserData | undefined>;
export declare function sha256Hash(value: string): Promise<string>;