/**
 * @param {string | null} p
 * @returns {(boolean|null)}
 */
export function stringToBool(p: string | null): (boolean | null);
/**
 * @param {string | number | boolean | null | undefined} v
 * @param {string} name
 * @param {any} props
 * @param {string | undefined} [postfix]
 * @param {boolean} [excludePermaLink]
 */
export function setProp(v: string | number | boolean | null | undefined, name: string, props: any, postfix?: string | undefined, excludePermaLink?: boolean): void;
/**
 * @param {string} name
 * @param {any} props
 */
export function getProp(name: string, props: any): any;
/**
 * @param {any} props
 */
export function restoreProps(props: any): void;