import { Unit, Units } from '../interfaces/unit.interfaces';
import { privateNotesKey, unitIdentifier } from '../interfaces/common.interfaces';
/**
 * checks is hub already created
 */
export declare const isHubCreated: () => boolean;
/**
 * stores next hub value
 */
export declare const recordNextHubValue: (value: Units) => void;
/**
 * retrieves all units from hub
 */
export declare const getUnitsFromHub: <T>() => Units<T>;
/**
 * retrieves unit from hub
 * as intermediate value
 * by name
 */
export declare const getUnitFromHubByName: <R = any, C = any>(name: string) => Unit<R, C>;
/**
 * retrieves unit from hub
 * as intermediate value
 * by identifier
 */
export declare const getUnitFromHubByIdentifier: <R = any, C = any>(id: unitIdentifier) => Unit<R, C>;
/**
 * Returns the next hubs value
 */
export declare function updateHub<R, C>(routes: Unit<R, C>, name: string, key: privateNotesKey): Units<Unit<R, C>>;