code: def test_serialize(self, session):
      import_error = ImportError(
          filename="lorem.py",
          stacktrace="Lorem Ipsum",
          timestamp=timezone.parse(self.timestamp, timezone="UTC"),
      )
      session.add(import_error)
      session.commit()
      serialized_data = import_error_schema.dump(import_error)
      serialized_data["import_error_id"] = 1
      assert {
          "filename": "lorem.py",
          "import_error_id": 1,
          "stack_trace": "Lorem Ipsum",
          "timestamp": "2020-06-10T12:02:44+00:00",
      } == serialized_data
  
file_path: airflow/tests/api_connexion/schemas/test_error_schema.py
imports: from __future__ import annotations
  import pytest
  from airflow.api_connexion.schemas.error_schema import ImportErrorCollection, import_error_collection_schema, import_error_schema
  from airflow.models.errors import ImportError
  from airflow.utils import timezone
  from airflow.utils.session import provide_session
  from tests.test_utils.db import clear_db_import_errors
label_desc: Use image node_id 1 for calling the TestErrorSchema obj's underlying member method code with example usage: obj.test_serialize(session) without return types