import { type AnalyticsProduct, type EventData, type EventProperties, type TrackTypesValues, type UserData, type UserTraits } from '@farfetch/blackout-analytics';
import type { GTMEventContext } from './types/index.js';
import type { User } from '@farfetch/blackout-client';
/**
 * Picks the user parameters of interest.
 *
 * @param data - Analytics event object.
 *
 * @returns Properties of the event.
 */
export declare const getEventProperties: (data: EventData<TrackTypesValues>) => EventProperties | Record<string, undefined>;
/**
 * Picks the user parameters of interest.
 *
 * @param user - Analytics user object.
 *
 * @returns The filtered user object.
 */
export declare const getUserParameters: (user: UserData) => {
    id: UserData['id'];
    localId: UserData['localId'];
    email: User['email'];
    name: User['name'];
    isGuest: UserTraits['isGuest'];
};
/**
 * Picks the event context parameters of interest.
 *
 * @param context - Analytics event context object.
 *
 * @returns The filtered context object.
 */
export declare const getContextParameters: (context: EventData<TrackTypesValues>['context']) => GTMEventContext;
/**
 * Picks the product categories.
 *
 * @param categories - Product categories.
 *
 * @returns The product categories.
 */
export declare const getProductCategory: (categories: AnalyticsProduct['category'] | Array<string>) => Array<string>;
/**
 * Picks the product parameters of interest.
 *
 * @param product - Product event payload object.
 *
 * @returns The filtered product object.
 */
export declare const getProductData: (product: AnalyticsProduct) => AnalyticsProduct;