ruffer-pattern-portfolio/build/lib/Atoms/Button2/ButtonProps.d.ts

This is the end result from https://dev.to/swyx/quick-guide-to-setup-your-react--typescript-storybook-design-system-1c51

import { ButtonProps as BootstrapButtonProps } from 'react-bootstrap';
export interface ButtonProps extends BootstrapButtonProps {
    loading?: boolean;
    value: string;
    classNames?: string;
    badgeValue?: string;
    onClick?: () => Event;
    onMouseOver?: () => Event;
}