How to use the react-native-image-resizer.default function in react-native-image-resizer

export const generateThumbnail = (uri: string) => {
  return Observable.from(
    ImageResizer.default.createResizedImage(uri, 300, 300, 'JPEG', 50)
  );
};

const mimeUtils = require('lib/mime-utils.js').mime;
const { ScreenHeader } = require('lib/components/screen-header.js');
const NoteTagsDialog = require('lib/components/screens/NoteTagsDialog');
const { time } = require('lib/time-utils.js');
const { Checkbox } = require('lib/components/checkbox.js');
const { _ } = require('lib/locale.js');
const { reg } = require('lib/registry.js');
const { shim } = require('lib/shim.js');
const ResourceFetcher = require('lib/services/ResourceFetcher');
const { BaseScreenComponent } = require('lib/components/base-screen.js');
const { themeStyle, editorFont } = require('lib/components/global-style.js');
const { dialogs } = require('lib/dialogs.js');
const DialogBox = require('react-native-dialogbox').default;
const { NoteBodyViewer } = require('lib/components/note-body-viewer.js');
const { DocumentPicker, DocumentPickerUtil } = require('react-native-document-picker');
const ImageResizer = require('react-native-image-resizer').default;
const shared = require('lib/components/shared/note-screen-shared.js');
const ImagePicker = require('react-native-image-picker');
const { SelectDateTimeDialog } = require('lib/components/select-date-time-dialog.js');
const ShareExtension = require('react-native-share-extension').default;
const CameraView = require('lib/components/CameraView');
const SearchEngine = require('lib/services/SearchEngine');
const urlUtils = require('lib/urlUtils');

import FileViewer from 'react-native-file-viewer';

class NoteScreenComponent extends BaseScreenComponent {
	static navigationOptions() {
		return { header: null };
	}

	constructor() {