silverstripe-framework/admin/javascript/src/components/grid-field/header.js

import React from 'react';
import SilverStripeComponent from 'silverstripe-component';
import GridFieldRowComponent from './row';

class GridFieldHeaderComponent extends SilverStripeComponent {

  render() {
    return (
      <GridFieldRowComponent>{this.props.children}</GridFieldRowComponent>
    );
  }

}

export default GridFieldHeaderComponent;