code: def test_prv_accountant(self) -> None:
      noise_multiplier = 1.5
      sample_rate = 0.04
      steps = int(90 // 0.04)
  
      accountant = PRVAccountant()
  
      for _ in range(steps):
          accountant.step(
              noise_multiplier=noise_multiplier, sample_rate=sample_rate
          )
  
      epsilon = accountant.get_epsilon(delta=1e-5)
      self.assertAlmostEqual(epsilon, 6.777395712150674)
  
file_path: opacus/opacus/tests/accountants_test.py
imports: import unittest
  import hypothesis.strategies
  from hypothesis import given, settings
  from opacus.accountants import GaussianAccountant, PRVAccountant, RDPAccountant, create_accountant
  from opacus.accountants.utils import get_noise_multiplier
label_desc: Use image node_id 3 for calling the AccountingTest obj's underlying member method code with example usage: obj.test_prv_accountant() without return types