/**
 * Returns if the target is a "child" of the tree of the given "parent" object.
 *
 * @param child Target object.
 * @param parent Parent object.
 * @returns
 */
export declare function isChildOfParent(child: object, parent: object): boolean;
/**
 * Returns if the target is a "parent" that has in its tree the given "child" object.
 *
 * @param parent Target object.
 * @param child Child object.
 * @returns
 */
export declare function isParentOfChild(parent: object, child: object): boolean;