import { JSONObject, JSONValue } from '@segment/actions-core';
export type ConvertFun = (rawValue: unknown) => JSONValue;
export declare const ROOT: unique symbol;
export declare const COPY: {};
export declare const DROP: unique symbol;
export interface EventMap {
    fields: Record<string, FieldMap | typeof DROP>;
    unmappedFieldObject?: string | typeof ROOT;
    defaultObject?: JSONObject;
    finalize?: (o: JSONObject) => JSONObject;
}
export interface FieldMap extends Partial<EventMap> {
    type?: 'array' | 'object';
    name?: string | string[];
    convert?: ConvertFun;
}
export type AnalyticsPayload = Record<string, JSONValue>;
export declare function mapEvent(map: EventMap, analyticsPayload: AnalyticsPayload): JSONObject;
export declare function mapEventHelper(map: EventMap, analyticsPayload: AnalyticsPayload): JSONObject | undefined;
export declare function stringify(rawValue: JSONValue): string;