code: def test_execute(self, mock_firestore_hook):
      op = CloudFirestoreExportDatabaseOperator(
          task_id="test-task",
          body=EXPORT_DOCUMENT_BODY,
          gcp_conn_id="google_cloud_default",
          project_id=TEST_PROJECT_ID,
      )
      op.execute(mock.MagicMock())
      mock_firestore_hook.return_value.export_documents.assert_called_once_with(
          body=EXPORT_DOCUMENT_BODY,
          database_id="(default)",
          project_id=TEST_PROJECT_ID,
      )
  
imports: from __future__ import annotations
  from unittest import mock
  from airflow.providers.google.firebase.operators.firestore import CloudFirestoreExportDatabaseOperator
label_desc: Use image node_id 1 for calling the TestCloudFirestoreExportDatabaseOperator obj's underlying member method code with example usage: obj.test_execute(mock_firestore_hook) without return types