code: def test_update(self):
      self.__setup()
      # Create task in the project
      task_obj = self.task_controller.create()
      assert isinstance(task_obj, Task)
  
      # Test 1: When no meta data is passed
      updated_task_obj = self.task_controller.update(task_obj.id)
      assert updated_task_obj.workspace is None
  
      # Test 2: When meta data for workspace is passed
      test_workspace = "notebook"
      test_command = "python script.py"
      updated_task_obj = self.task_controller.update(
          task_obj.id, workspace=test_workspace, command=test_command
      )
      assert updated_task_obj.workspace == test_workspace
      assert updated_task_obj.command == test_command
      assert updated_task_obj.command_list == ["python", "script.py"]
  
      # Test 3: When meta data for workspace is passed
      test_interactive = True
      updated_task_obj = self.task_controller.update(
          task_obj.id, interactive=test_interactive
      )
      assert updated_task_obj.interactive == test_interactive
  
      # Test 4: When meta data for workspace is passed
      test_command_list = ["python", "script.py"]
      updated_task_obj = self.task_controller.update(
          task_obj.id, command_list=test_command_list
      )
      assert updated_task_obj.command_list == ["python", "script.py"]
  
imports: import os
  import uuid
  import tempfile
  import platform
  from io import open, TextIOWrapper
  from datmo.config import Config
  from datmo.core.controller.project import ProjectController
  from datmo.core.controller.environment.environment import EnvironmentController
  from datmo.core.controller.task import TaskController
  from datmo.core.entity.task import Task
  from datmo.core.util.exceptions import EntityNotFound, TaskRunError, InvalidArgumentType, RequiredArgumentMissing, ProjectNotInitialized, InvalidProjectPath, TooManyArgumentsFound, DoesNotExist
  from datmo.core.util.misc_functions import check_docker_inactive, pytest_docker_environment_failed_instantiation
label_desc: Use image node_id 14 for calling the TestTaskController obj's underlying member method code with example usage: obj.test_update() without return types