import * as React from 'react';
import { Menu } from 'union-design';
import "union-design/lib/dropdown/styles/css";
export interface DropdownButtonProps {
    disabled?: boolean;
    icon?: string;
    icon_fontsize?: number;
    overlay?: Menu;
    placement?: "bottomLeft" | "bottomCenter" | "bottomRight" | "topLeft" | "topCenter" | "topRight";
    size?: "small" | "large" | "default";
    trigger?: "click" | "hover" | "contextMenu";
    type?: "primary" | "dashed" | "danger" | "link" | "";
    visible?: boolean;
    onVisibleChange?: (visible: boolean) => void;
    onClick?: (event: any) => void;
    style?: object;
}
declare const DropdownButton: React.FC<DropdownButtonProps>;
export default DropdownButton;