code: def test_retrieve_inventory_should_return_job_id(self, mock_conn):
      # Given
      job_id = {"jobId": "1234abcd"}
      # when
      mock_conn.return_value.initiate_job.return_value = job_id
      result = self.hook.retrieve_inventory(VAULT_NAME)
      # then
      mock_conn.assert_called_once_with()
      assert job_id == result
  
file_path: airflow/tests/providers/amazon/aws/hooks/test_glacier.py
imports: from __future__ import annotations
  import logging
  from unittest import mock
  from airflow.providers.amazon.aws.hooks.glacier import GlacierHook
label_desc: Use image node_id 2 for calling the TestAmazonGlacierHook obj's underlying member method code with example usage: obj.test_retrieve_inventory_should_return_job_id(mock_conn) without return types