code: def test_request_budget(self):
      budget_accountant = NaiveBudgetAccountant(
          total_epsilon=1, total_delta=0
      )
      budget = budget_accountant.request_budget(
          mechanism_type=MechanismType.LAPLACE
      )
      self.assertTrue(budget)  # An object must be returned.
  
      with self.assertRaises(AssertionError):
          print(budget.eps)  # The privacy budget is not calculated yet.
  
      with self.assertRaises(AssertionError):
          print(budget.delta)
  
imports: import sys
  import unittest
  from dataclasses import dataclass
  from pipeline_dp.budget_accounting import MechanismSpec
  from pipeline_dp.aggregate_params import MechanismType
  from pipeline_dp.budget_accounting import NaiveBudgetAccountant
  from pipeline_dp.budget_accounting import PLDBudgetAccountant
  from absl.testing import parameterized
label_desc: Use image node_id 2 for calling the NaiveBudgetAccountantTest obj's underlying member method code with example usage: obj.test_request_budget() without return types