code: def test_passthrough(self):
      bg = Philox()
      rg = default_rng(bg)
      assert rg.bit_generator is bg
      rg2 = default_rng(rg)
      assert rg2 is rg
      assert rg2.bit_generator is bg
  
imports: import os
  from os.path import join
  import sys
  import numpy
  from numpy.testing import assert_equal, assert_allclose, assert_array_equal, assert_raises
  import pytest
  from numpy.random import Generator, MT19937, PCG64, PCG64DXSM, Philox, RandomState, SeedSequence, SFC64, default_rng
  from numpy.random._common import interface
  import yatest.common
label_desc: Use image node_id 2 for calling the TestDefaultRNG obj's underlying member method code with example usage: obj.test_passthrough() without return types