code: def setup_method(self):
      db.merge_conn(
          Connection(
              conn_id="kafka_d",
              conn_type="kafka",
              extra=json.dumps(client_config),
          )
      )
  
file_path: airflow/tests/integration/providers/apache/kafka/hooks/test_admin_client.py
imports: from __future__ import annotations
  import json
  import pytest
  from airflow.models import Connection
  from airflow.providers.apache.kafka.hooks.client import KafkaAdminClientHook
  from airflow.utils import db
label_desc: Use image node_id 1 for calling the TestKafkaAdminClientHook obj's underlying member method code with example usage: obj.setup_method() without return types