code: function removeComments(t, path, type) {
      let commentPaths = path.get(type);
      if (!commentPaths || !commentPaths.length) {
          return;
      }
  
      let isLeadingType = type === LEADING_COMMENT_TYPE;
      if (isLeadingType) {
          let parentPath = path.parentPath;
          let isParentProgram = parentPath && t.isProgram(parentPath.node);
  
          // move leading comments to program
          if (isParentProgram) {
              parentPath.addComments(
                  'leading',
                  commentPaths.map(item => item.node)
              );
          }
      }
  
      commentPaths.forEach(item => item.remove());
  }
docs: Remove node comments
  
  @param {Object} t the babel type definition
  @param {Object} path the node path
  @param {string} type the comment type