import { Subject } from 'rxjs';
import { ConfigOptions } from './configurator.typings';
/**
 * @description
 * Service to manage options/configs for services and apps.
 *
 * @ngModule ConfiguratorModule
 * @publicApi
 */
export declare class ConfiguratorService {
    /**
     * @description
     * Property for listen subject dispatches
     *
     * @memberof ConfiguratorService
     */
    readonly listener: Subject<ConfigOptions>;
    /**
     * @description
     * Property to register options as a collection
     *
     * @memberof ConfiguratorService
     */
    private repository;
    constructor(options?: ConfigOptions | undefined);
    /**
     * @description
     * Sets a new option/value in collection
     *
     * @param name Option key
     * @param value Option value
     * @memberof ConfiguratorService
     */
    setOption(name: string, value: any): void;
    /**
     * @description
     * Get a configuration value from the collection.
     *
     * @param name Option key
     * @param defaults Default value if missing
     */
    getOption<O>(name: string, defaults?: any): O;
    /**
     * @description
     * Gets a tree object of options
     *
     * @param rootKey Includ root key
     * @param fromRoot From top object
     * @memberof ConfiguratorService
     */
    getOptionTree<T>(rootKey: string, fromRoot?: boolean): T;
    /**
     * @description
     * Getter Options collection
     *
     * @memberof ConfiguratorService
     */
    get options(): ConfigOptions;
    /**
     * @description
     * Setter Options collection
     *
     * @memberof ConfiguratorService
     */
    set options(opt: ConfigOptions);
    /**
     * @description
     * Resets options
     */
    reset(): void;
    /**
     * @description
     * Verify if option name exists on the collection.
     *
     * @param name Option key
     */
    hasOption(name: string): boolean;
    /**
     * @description
     * Converts a tree object keys in flat
     * key string in one level.
     *
     * @usageNotes
     * ```javascript
     * {
     *  name: '',
     *  profile: {
     *    email: ''
     *  }
     * }
     * ```
     * to:
     * ```javascript
     * {'name': '', 'profile.email': ''}
     * ```
     * @param config
     * @param key Key to append
     */
    private flat;
}