content: import React from 'react';
  import PropTypes from 'prop-types';
  import defer from './defer';
  import Button from '../components/Button';
  
  function FormButton(props) {
    const { disabled, mounted, ...others } = props;
    return <Button disabled={!mounted || disabled} type="submit" variant="contained" {...others} />;
  }
  
  FormButton.propTypes = {
    disabled: PropTypes.bool,
    mounted: PropTypes.bool,
  };
  
  export default defer(FormButton);
  