import * as React from 'react';
import { ButtonTrait } from 'types/trait';
type Size = 'micro' | 'smaller' | 'small' | 'big' | 'xl';
export declare const sizeTypes: Array<Size>;
export declare const traitTypes: Array<ButtonTrait>;
export interface ButtonProps extends React.HTMLAttributes<HTMLElement> {
    as: string | React.ComponentType<any> | undefined;
    className?: string;
    disabled: boolean;
    href?: string;
    onClick?: (event: React.MouseEvent<HTMLButtonElement | HTMLAnchorElement>) => void;
    size?: Size;
    target?: '_blank' | '_self' | '_parent' | '_top';
    trait?: ButtonTrait;
    type?: 'button' | 'submit';
    whitespace: 'normal' | 'nowrap';
    width: string;
}
export declare class UIButton extends React.PureComponent<ButtonProps> {
    static defaultProps: {
        as: string;
        disabled: boolean;
        type: string;
        whitespace: string;
        width: string;
    };
    render(): React.ReactElement;
}
export {};