code: def test_error_classes_sorted(self):
      # Test error classes is sorted alphabetically
      error_reader = ErrorClassesReader()
      error_class_names = list(error_reader.error_info_map.keys())
      for i in range(len(error_class_names) - 1):
          self.assertTrue(
              error_class_names[i] < error_class_names[i + 1],
              f"Error class [{error_class_names[i]}] should place"
              f"after [{error_class_names[i + 1]}]",
          )
  
file_path: spark/python/pyspark/errors/tests/test_errors.py
imports: import json
  import unittest
  from pyspark.errors import PySparkValueError
  from pyspark.errors.error_classes import ERROR_CLASSES_JSON
  from pyspark.errors.utils import ErrorClassesReader
label_desc: Use image node_id 1 for calling the ErrorsTest obj's underlying member method code with example usage: obj.test_error_classes_sorted() without return types