code: def test_data_mutable_default_warning(self):
      with pm.Model():
          with pytest.warns(
              UserWarning, match="`mutable` kwarg was not specified"
          ):
              data = pm.Data("x", [1, 2, 3])
          assert isinstance(data, pt.TensorConstant)
      pass
  
imports: import io
  import itertools
  import re
  import cloudpickle
  import numpy
  import pytensor
  import pytensor.tensor
  import pytest
  from pytensor import shared
  from pytensor.tensor.variable import TensorVariable
  import pymc
  from pymc.data import is_minibatch
  from pymc.pytensorf import GeneratorOp, floatX
label_desc: Use image node_id 19 for calling the TestData obj's underlying member method code with example usage: obj.test_data_mutable_default_warning() without return types