code: def prepare_db(self, create_task_instance):
      session = settings.Session()
      log_template = LogTemplate(
          filename=self.FILENAME_TEMPLATE, elasticsearch_id=""
      )
      session.add(log_template)
      session.commit()
      ti = create_task_instance(
          dag_id=self.DAG_ID,
          task_id=self.TASK_ID,
          start_date=self.DEFAULT_DATE,
          run_type=DagRunType.SCHEDULED,
          execution_date=self.DEFAULT_DATE,
          state=TaskInstanceState.RUNNING,
      )
      ti.try_number = 3
      ti.hostname = "localhost"
      self.ti = ti
      yield
      clear_db_runs()
      clear_db_dags()
      session.delete(log_template)
      session.commit()
  
imports: from __future__ import annotations
  import copy
  import datetime
  import logging
  import os
  import sys
  import tempfile
  from typing import TYPE_CHECKING
  from unittest import mock
  import pendulum
  import pytest
  from airflow import settings
  from airflow.config_templates.airflow_local_settings import DEFAULT_LOGGING_CONFIG
  from airflow.models.tasklog import LogTemplate
  from airflow.operators.python import PythonOperator
  from airflow.timetables.base import DataInterval
  from airflow.utils import timezone
  from airflow.utils.log.log_reader import TaskLogReader
  from airflow.utils.log.logging_mixin import ExternalLoggingMixin
  from airflow.utils.state import TaskInstanceState
  from airflow.utils.types import DagRunType
  from tests.test_utils.config import conf_vars
  from tests.test_utils.db import clear_db_dags, clear_db_runs
label_desc: Use image node_id 5 for calling the TestLogView obj's underlying member method code with example usage: obj.prepare_db(create_task_instance) without return types