code: def test_init_app(self):
      assert init_app == base_init_app
  
imports: from __future__ import annotations
  from airflow.api.auth.backend.kerberos_auth import init_app
  from airflow.providers.fab.auth_manager.api.auth.backend.kerberos_auth import init_app
label_desc: Use image node_id 1 for calling the TestKerberosAuth obj's underlying member method code with example usage: obj.test_init_app() without return types