export interface ReactTestElement {
    type: string;
    props: ReactProps;
    children: ReactTestChild[];
    $$typeof?: Symbol;
}
export interface ReactProps {
    [name: string]: any;
}
export declare type ReactTestChild = ReactTestElement | string | number | null;
/**
 * Transform to object-tree for snapshot testing
 * which is compatible to "react.test.json" in Jest.
 */
export default function toJSON(element: Element): ReactTestElement;