import React from 'react';
export type OnClickWithReturn = (event: React.SyntheticEvent<any>) => any;
export interface ButtonBaseProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
    innerRef?: React.Ref<HTMLButtonElement>;
    component?: React.ElementType;
    onClick?: React.ButtonHTMLAttributes<HTMLButtonElement>['onClick'] | OnClickWithReturn;
    onLoadingChange?(loading: boolean): void;
}
export declare function ButtonBase(props: ButtonBaseProps): JSX.Element;
export declare namespace ButtonBase {
    var defaultProps: ButtonBaseProps;
}