code: def _get_country_code(self, ip: str) -> str:
      try:
          response = get(self.url.format(ip)).json()
          return response["countryCode"]
      except Exception:
          return None
  
file_path: upgini/src/upgini/utils/ip_utils.py
imports: import logging
  from typing import Dict, List, Optional
  import pandas
  from requests import get
  from upgini.metadata import SearchKey
label_desc: Use image node_id 2 for calling the IpToCountrySearchKeyConverter obj's underlying member method code with example usage: obj._get_country_code(ip) and returns: response, None