private static boolean isConjunctionExpression(@Nullable PyExpression expression, @NotNull PyElementType tokenType) {
    if (expression instanceof PyBinaryExpression) {
      final PyElementType operator = ((PyBinaryExpression)expression).getOperator();
      return operator == tokenType;
    }
    return false;
  }
private static boolean isConjunctionExpression(@Nullable PyExpression expression, @NotNull PyElementType tokenType)