我想在quill.js中添加ms word格式，以便找到此函数

public static updateQuillInstance(quillInstance) {
    quillInstance.clipboard.addMatcher(Node.ELEMENT_NODE, (node, delta) => {
      return this.msftFormattingMatcher(node, delta);
    });
  }

private static msftFormattingMatcher(node, delta) {
    const htmlElementWithMetadata = node.ownerDocument.activeElement;
    const allOpSpanElementsNested: any[] = get(htmlElementWithMetadata, 'children[0].children', []);
    const allOpSpanElements: any[] = [];
    // superscript styling is nested as a child element unlike the others... need to parse
    for (let i = 0; i < allOpSpanElementsNested.length; i++) {
      if (allOpSpanElementsNested[i].children.length < 1) {
        allOpSpanElements.push(allOpSpanElementsNested[i]);
      } else {
        allOpSpanElements.push(...allOpSpanElementsNested[i].children);
      }
    }

    const op = delta && delta.ops && delta.ops[0];
    if (op) {
      const correspondingSpan = find(allOpSpanElements, el => {
        return op.insert === el.innerText;
      });

      if (correspondingSpan) {
        this.setQuillStyles(op, correspondingSpan);
      }
    }
    return delta;
  }

private static setQuillStyles(op, correspondingSpan) {
    const verticalAlign = correspondingSpan.style.verticalAlign;
    if (verticalAlign === 'super' || verticalAlign === 'sub') {
      assign(op.attributes, {script: verticalAlign});
    }

    const fontFamilyMap = {
      // TODO: This can be automatically built from the whitelist
      Arial: 'arial',
      Georgia: 'georgia',
      'Courier New': 'courier-new',
      'Comic Sans MS': 'comic-sans-ms', // except this one -_-
      Impact: 'impact',
      'Lucida Console': 'lucida-console',
    };
    const fontFamily = correspondingSpan.style.fontFamily;
    const font = fontFamily && fontFamilyMap[fontFamily.replace(/"/gi, '')];
    if (font) {
      assign(op.attributes, {font});
    }
  }

我代替 private static 及 public static 通过 function 但是，当我在quill.js编辑器中粘贴文本时，我发现错误get未定义。
有人知道我如何修改代码使其正常工作吗？