code: def get_task_instance(self, task: BaseOperator) -> TaskInstance:
      return TaskInstance(task, timezone.datetime(2022, 1, 1))
  
imports: from __future__ import annotations
  import datetime
  from typing import TYPE_CHECKING
  from unittest import mock
  import pendulum
  import pytest
  from airflow.exceptions import AirflowException, AirflowSkipException, TaskDeferred
  from airflow.models import Connection
  from airflow.models.dag import DAG
  from airflow.models.dagrun import DagRun
  from airflow.models.taskinstance import TaskInstance
  from airflow.providers.microsoft.azure.sensors.wasb import WasbBlobSensor, WasbPrefixSensor
  from airflow.providers.microsoft.azure.triggers.wasb import WasbBlobSensorTrigger, WasbPrefixSensorTrigger
  from airflow.utils import timezone
  from airflow.utils.types import DagRunType
label_desc: Use image node_id 2 for calling the TestWasbBlobAsyncSensor obj's underlying member method code with example usage: obj.get_task_instance(task) and returns: TaskInstance