code: def test_update_user(self):
      user = self.dal.user.create(User(self.user_input_dict))
  
      # Update required and optional parameters
      updated_user_input_dict = self.user_input_dict.copy()
      updated_user_input_dict["id"] = user.id
      updated_user_input_dict["name"] = "cooldude"
      updated_user_input_dict["created_at"] = datetime.utcnow()
      updated_user = self.dal.user.update(updated_user_input_dict)
  
      assert user.id == updated_user.id
      assert user.updated_at < updated_user.updated_at
      assert updated_user.name == updated_user_input_dict["name"]
      assert (
          updated_user.created_at
          == updated_user_input_dict["created_at"]
      )
  
imports: from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  import os
  import tempfile
  import platform
  from datetime import datetime
  from datmo.core.storage.driver.blitzdb_dal_driver import BlitzDBDALDriver
  from datmo.core.storage.local.dal import LocalDAL
  from datmo.core.entity.user import User
  from datmo.core.util.exceptions import EntityNotFound, InvalidArgumentType
label_desc: Use image node_id 7 for calling the TestLocalDAL obj's underlying member method code with example usage: obj.test_update_user() without return types