code: def setUp(self):
      self.method = Geocoder()._format_bounding_box
  
imports: import unittest
  from contextlib import ExitStack
  from unittest.mock import patch, sentinel
  import pytest
  import geopy.geocoders
  import geopy.geocoders.base
  from geopy.adapters import BaseAsyncAdapter, BaseSyncAdapter
  from geopy.exc import GeocoderNotFound, GeocoderQueryError
  from geopy.geocoders import GoogleV3, get_geocoder_for_service
  from geopy.geocoders.base import Geocoder, _synchronized
  from geopy.point import Point
label_desc: Use image node_id 1 for calling the GeocoderFormatBoundingBoxTestCase obj's underlying member method code with example usage: obj.setUp() without return types