import { FrontendDescription } from '../../../types';
import { SimpleTopicsAPI } from '../index';
/**
 * Manages the communication with a publish subscribe mechanism where topics can be defined at dev-time in services
 *
 * Sequence Diagram: see {@link topics.md}
 */
declare type PreviousContext = {
    topics: SimpleTopicsAPI;
};
declare type EnhancedContext = {
    topics: SimpleTopicsAPI & Record<string, unknown>;
};
/**
 * Creates a nested Object from a dot-separated-string by interpreting every substring as a level of the object
 * @param str - string to convert, e.g. 'level_0.level_1.level_2'
 * @param tail - content of the most deepest level, e.g. 'i am deepest'
 * @returns nested Object, e.g. { level_0: { level_1: { level_2: 'i am deepest' }}}
 */
export declare function stringToObject(str: string, tail?: {}): object;
/**
 * Searches for arrays with a specific name at any position in an object and returns their entries as a single array
 * The entries are prepended by their object paths
 * @param obj - Object to be browsed
 * @param arrayName - name of the Array of interest
 * @param path - path variable to prepend
 * @returns combined Array of entries
 */
export declare function extractEntriesFromObject(obj: Record<string, unknown>, arrayName: string, path?: Array<string>): Array<string>;
/**
 * Creates a Topics Object, which uses the Contexts topicsApi, to extend the Context with
 * @param topicsArray - array of topics
 * @param context - Context
 * @returns Topics Object
 */
export declare function arrayToTopicsObject(topicsArray: Array<string>, simpleTopicsApi: SimpleTopicsAPI): object;
declare const _default: import("../../../types").Plugin<FrontendDescription, PreviousContext, EnhancedContext>;
export default _default;