code: def test_should_respond_200(self):
      expected = {
          "tasks": [
              {
                  "class_ref": {
                      "class_name": "EmptyOperator",
                      "module_path": "airflow.operators.empty",
                  },
                  "depends_on_past": False,
                  "downstream_task_ids": [self.task_id2],
                  "end_date": None,
                  "execution_timeout": None,
                  "extra_links": [],
                  "operator_name": "EmptyOperator",
                  "owner": "airflow",
                  "params": {
                      "foo": {
                          "__class": "airflow.models.param.Param",
                          "value": "bar",
                          "description": None,
                          "schema": {},
                      }
                  },
                  "pool": "default_pool",
                  "pool_slots": 1.0,
                  "priority_weight": 1.0,
                  "queue": "default",
                  "retries": 0.0,
                  "retry_delay": {
                      "__type": "TimeDelta",
                      "days": 0,
                      "seconds": 300,
                      "microseconds": 0,
                  },
                  "retry_exponential_backoff": False,
                  "start_date": "2020-06-15T00:00:00+00:00",
                  "task_id": "op1",
                  "template_fields": [],
                  "trigger_rule": "all_success",
                  "ui_color": "#e8f7e4",
                  "ui_fgcolor": "#000",
                  "wait_for_downstream": False,
                  "weight_rule": "downstream",
                  "is_mapped": False,
              },
              {
                  "class_ref": {
                      "class_name": "EmptyOperator",
                      "module_path": "airflow.operators.empty",
                  },
                  "depends_on_past": False,
                  "downstream_task_ids": [],
                  "end_date": None,
                  "execution_timeout": None,
                  "extra_links": [],
                  "operator_name": "EmptyOperator",
                  "owner": "airflow",
                  "params": {},
                  "pool": "default_pool",
                  "pool_slots": 1.0,
                  "priority_weight": 1.0,
                  "queue": "default",
                  "retries": 0.0,
                  "retry_delay": {
                      "__type": "TimeDelta",
                      "days": 0,
                      "seconds": 300,
                      "microseconds": 0,
                  },
                  "retry_exponential_backoff": False,
                  "start_date": "2020-06-16T00:00:00+00:00",
                  "task_id": self.task_id2,
                  "template_fields": [],
                  "trigger_rule": "all_success",
                  "ui_color": "#e8f7e4",
                  "ui_fgcolor": "#000",
                  "wait_for_downstream": False,
                  "weight_rule": "downstream",
                  "is_mapped": False,
              },
          ],
          "total_entries": 2,
      }
      response = self.client.get(
          f"/api/v1/dags/{self.dag_id}/tasks",
          environ_overrides={"REMOTE_USER": "test"},
      )
      assert response.status_code == 200
      assert response.json == expected
  
imports: from __future__ import annotations
  import os
  import unittest.mock
  from datetime import datetime
  import pytest
  from airflow.models import DagBag
  from airflow.models.dag import DAG
  from airflow.models.expandinput import EXPAND_INPUT_EMPTY
  from airflow.models.serialized_dag import SerializedDagModel
  from airflow.operators.empty import EmptyOperator
  from airflow.security import permissions
  from tests.test_utils.api_connexion_utils import assert_401, create_user, delete_user
  from tests.test_utils.db import clear_db_dags, clear_db_runs, clear_db_serialized_dags
label_desc: Use image node_id 1 for calling the TestGetTasks obj's underlying member method code with example usage: obj.test_should_respond_200() without return types