code: def mock_init(
      self,
      gcp_conn_id,
      impersonation_chain=None,
  ):
      pass
  
imports: from __future__ import annotations
  from unittest import mock
  from unittest.mock import call, patch
  import pytest
  from airflow.exceptions import AirflowException
  from airflow.providers.google.cloud.hooks.datastore import DatastoreHook
label_desc: Use image node_id 1 for calling a global function with example usage: mock_init(gcp_conn_id, impersonation_chain) without return types