class_docstr: A wrapper for schema for a service.
class_docstr_tok: ["A","wrapper","for","schema","for","a","service","."]
code: def service_id(self):
      return self._service_id
  
imports: import json
  from typing import List, Optional, Union
  from nemo.utils import logging
label_desc: Use image node_id 5 for calling the ServiceSchema obj's underlying member method code with example usage: obj.service_id() and returns: self