code: def test_default_dtype(self):
      # Create an op without specifying the dtype. Dtype should be float32 in
      # this case.
      s = math_ops.sobol_sample(10, 100)
      self.assertEqual(dtypes.float32, s.dtype)
  
imports: import numpy
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import gen_math_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 9 for calling the SobolSampleOpTest obj's underlying member method code with example usage: obj.test_default_dtype() without return types