@Override
  protected boolean isAvailableForElement(@Nullable PsiElement element) {
    if (element != null) {
      final PyStringLiteralExpression stringLiteral = PsiTreeUtil
        .getParentOfType(element, PyStringLiteralExpression.class);
      return stringLiteral != null || element instanceof PsiComment;
    }
    return false;
  }
@Override
  protected boolean isAvailableForElement(@Nullable PsiElement element)