import { Router } from '../models';
export declare type InnerProps<TProps extends Partial<TDefaultProps>, TDefaultProps> = Omit<TProps, keyof TDefaultProps> & Required<Pick<TProps, keyof TDefaultProps>>;
export declare type ChangeHandler<S> = <K extends keyof S, V extends S[K]>(field: K, value?: V) => () => void;
export declare function normalizePath(path?: string | null): string | undefined;
export declare function normalizeHash(hash?: string | null): string | null | undefined;
export declare function isActiveItem(router: Router, href: string, singlePage?: boolean): boolean;
export declare function isExternalHref(href: string): boolean;
export declare function getStateKey(showMiniToc: boolean | unknown, wideFormat: boolean | unknown, singlePage: boolean | unknown): string;
export declare function callSafe(func: ((path: string) => string) | undefined, path: string): string;
export declare function getHeaderTag(el: HTMLElement): HTMLElement | null;
export declare function createElementFromHTML(htmlString: string): Node;
export declare const getRandomKey: () => number;
export declare function isInvalidEmail(email: string): boolean;