code: def __init__(
      self,
      msg: Optional[str] = None,
      fields: Optional[List[List[str]]] = None,
  ):
      if msg is not None:
          self.msg = msg
      super().__init__(self.msg)  # show the message in stacktrace
      if fields is not None:
          self.fields = fields
  
imports: import enum
  from typing import List, Optional
label_desc: Use image node_id 1 to create a new ServerClientError object from inherited base classes: ServerError, ClientError with example: obj = ServerClientError(msg, fields)