@NotNull
  private static List<PyExpression> filterVariadicKeywordArguments(@NotNull List<PyExpression> arguments) {
    final List<PyExpression> results = new ArrayList<>();
    for (PyExpression argument : arguments) {
      if (argument != null && isVariadicKeywordArgument(argument)) {
        results.add(argument);
      }
    }
    return results;
  }
@NotNull
  private static List<PyExpression> filterVariadicKeywordArguments(@NotNull List<PyExpression> arguments)