import React from "react";
import { SimpleListToolbarProps } from "./SimpleListToolbarProps";
import { SimpleListToolbarState } from "./SimpleListToolbarState";
export declare class SimpleListToolbar extends React.Component<SimpleListToolbarProps, SimpleListToolbarState> {
    constructor(props: SimpleListToolbarProps);
    componentDidUpdate(prevProps: Readonly<SimpleListToolbarProps>, prevState: Readonly<SimpleListToolbarState>, snapshot?: any): void;
    private add;
    render(): JSX.Element;
}