code: def __str__(self):
      args = self.arguments or {}
      printable_args = ",".join([f"{k}={v}" for k, v in args.items()])
      return f"{self.code}({printable_args})"
  
imports: from typing import Any, Optional, Type, Union
  import pydantic
  from starlette import status
label_desc: Use image node_id 5 for calling the ServerError obj's underlying member method code with example usage: obj.__str__() and returns: self, str, printable_args, str