add class

src/client/js/components/PageEditor/GridEditModal.jsx

@@ -5,6 +5,15 @@ import {
   Modal, ModalHeader, ModalBody, ModalFooter,
 } from 'reactstrap';
 
+class BootstrapGrid {
+
+  constructor(colsRatios, responsiveSize) {
+    this.colsRatios = colsRatios;
+    this.responsiveSize = responsiveSize;
+  }
+
+}
+
 export default class GridEditModal extends React.PureComponent {
 
   constructor(props) {