@Override
  public @NotNull List<? extends Class<? extends PsiElement>> elementsToInjectIn() {
    return Arrays.asList(PyStringLiteralExpression.class, PyParenthesizedExpression.class, PyBinaryExpression.class,
                         PyCallExpression.class);
  }
@Override
  public @NotNull List<? extends Class<? extends PsiElement>> elementsToInjectIn()