code: def test_hook(self) -> None:
      assert self.hook.conn is not None
      assert self.hook.aws_conn_id == DEFAULT_CONN_ID
      assert self.hook.region_name == REGION
  
file_path: airflow/tests/providers/amazon/aws/hooks/test_ssm.py
imports: from __future__ import annotations
  from unittest import mock
  import botocore.exceptions
  import pytest
  from moto import mock_ssm
  from airflow.providers.amazon.aws.hooks.ssm import SsmHook
label_desc: Use image node_id 2 for calling the TestSsmHook obj's underlying member method code with example usage: obj.test_hook() without return types