code: def __init__(self, err_code, err_msg):
      self.err_code = err_code
      self.err_msg = err_msg
  
file_path: milvus/tests/python_client/common/code_mapping.py
imports: from enum import Enum
  from pymilvus import ExceptionsMessage
label_desc: Use image node_id 1 to create a new ErrorMap object  with example: obj = ErrorMap(err_code, err_msg)