import React from 'react';
import { OverlayProps, OverlayState } from './IOverlay';
declare class Overlay<BlockTypesType> extends React.PureComponent<OverlayProps<BlockTypesType>, OverlayState> {
    static readonly defaultProps: Readonly<{
        multiTypeSelect: boolean;
    }>;
    constructor(props: OverlayProps<BlockTypesType>);
    /**
     * switches the selected block type
     */
    private _onBlockTypeSelect;
    render(): JSX.Element;
}
export default Overlay;