code: def test_seed_not_none(self, dtype):
      self.check_seed(dtype(0))
  
imports: import unittest
  import pytest
  import numpy
  import cupy
  from cupy import random
  from cupy import testing
label_desc: Use image node_id 3 for calling the BitGeneratorTestCase obj's underlying member method code with example usage: obj.test_seed_not_none(dtype) without return types