@Override
    public void applyFix(@NotNull Project project, @NotNull PsiElement element, @NotNull ModPsiUpdater updater) {
      String newValue = myTypeSubstring.getTextRange().replace(myTypeSubstring.getSuperString(), myNewType);

      PyElementGenerator elementGenerator = PyElementGenerator.getInstance(project);

      final PyStringLiteralExpression stringLiteralExpression = as(element, PyStringLiteralExpression.class);
      if (stringLiteralExpression != null) {
        stringLiteralExpression.replace(elementGenerator.createDocstring(newValue).getExpression());
      }
    }
@Override
    public void applyFix(@NotNull Project project, @NotNull PsiElement element, @NotNull ModPsiUpdater updater)