code: def _is_metadatabase_mysql() -> bool:
      if settings.engine is None:
          raise AirflowException("Must initialize ORM first")
      return settings.engine.url.get_backend_name() == "mysql"
  
imports: from __future__ import annotations
  import datetime
  import functools
  import hashlib
  import logging
  import time
  import traceback
  from datetime import timedelta
  from typing import TYPE_CHECKING, Any, Callable, Iterable
  from airflow import settings
  from airflow.configuration import conf
  from airflow.exceptions import AirflowException, AirflowFailException, AirflowRescheduleException, AirflowSensorTimeout, AirflowSkipException, AirflowTaskTimeout, TaskDeferralError
  from airflow.executors.executor_loader import ExecutorLoader
  from airflow.models.baseoperator import BaseOperator
  from airflow.models.skipmixin import SkipMixin
  from airflow.models.taskreschedule import TaskReschedule
  from airflow.ti_deps.deps.ready_to_reschedule import ReadyToRescheduleDep
  from airflow.utils import timezone
  from airflow.utils.decorators import apply_defaults
  from airflow.utils.session import create_session
label_desc: Use image node_id 1 for calling a global function with example usage: _is_metadatabase_mysql() and returns: unknown