react typescript封装函数式组件styled-component

interface IButton {
  margin?: boolean;
  width?: string;
  justify?: JustifyContentProps;
}

const Button = styled.button`
  .....
`;


interface ILoadButton extends IButton, DOMAttributes {
  loading?: boolean;
}

export const LoadButton: FC = ({
  loading,
  children,
  ...props
}) => (
  
    {loading ?  : null}
    {children}
  
);