@Override
  public RestLine handleContentChange(@NotNull RestLine element, @NotNull TextRange range, String newContent) {
    final String oldText = element.getText();
    final String newText = oldText.substring(0, range.getStartOffset()) + newContent + oldText.substring(range.getEndOffset());
    element.updateText(newText);
    return element;
  }
@Override
  public RestLine handleContentChange(@NotNull RestLine element, @NotNull TextRange range, String newContent)