import { IDigitalTraceContext, TPropertyItem } from './types'; export declare const createClickStreamEventValue: (values: string[], userAction?: string) => string; export declare const transformClickStreamProperties: (props: Record) => Array; export declare const transformClickStreamPropertyValuesToString: (values: string | string[] | boolean) => string; export declare function injectDigitalTraceContextHeader(headers: Headers, context?: IDigitalTraceContext): Headers;