code: def test_read_configuration_from_connection(self):
      conn = Connection(
          conn_type="gcpssh",
          login="conn-user",
          host="conn-host",
          extra=json.dumps(
              {
                  "instance_name": "conn-instance-name",
                  "zone": "zone",
                  "use_internal_ip": True,
                  "use_iap_tunnel": True,
                  "use_oslogin": False,
                  "expire_time": 4242,
              }
          ),
      )
      conn_uri = conn.get_uri()
      with mock.patch.dict("os.environ", AIRFLOW_CONN_GCPSSH=conn_uri):
          hook = ComputeEngineSSHHook(gcp_conn_id="gcpssh")
          hook._load_connection_config()
      assert "conn-instance-name" == hook.instance_name
      assert "conn-host" == hook.hostname
      assert "conn-user" == hook.user
      assert hook.use_internal_ip is True
      assert isinstance(hook.use_internal_ip, bool)
      assert hook.use_iap_tunnel is True
      assert isinstance(hook.use_iap_tunnel, bool)
      assert hook.use_oslogin is False
      assert isinstance(hook.use_oslogin, bool)
      assert 4242 == hook.expire_time
      assert isinstance(hook.expire_time, int)
  
imports: from __future__ import annotations
  import json
  import logging
  from unittest import mock
  import httplib2
  import pytest
  from googleapiclient.errors import HttpError
  from paramiko.ssh_exception import SSHException
  from airflow.exceptions import AirflowException
  from airflow.models import Connection
  from airflow.providers.google.cloud.hooks.compute_ssh import ComputeEngineSSHHook
label_desc: Use image node_id 13 for calling the TestComputeEngineHookWithPassedProjectId obj's underlying member method code with example usage: obj.test_read_configuration_from_connection() without return types