code: def test_bug_complext_10_august_09(self):
      v0 = dmatrix()
      v1 = _convert_to_complex128(v0)
  
      f = function([v0], v1)
      i = np.zeros((2, 2))
      assert np.array_equal(f(i), i)
  
file_path: pytensor/tests/tensor/test_casting.py
imports: import numpy
  import pytest
  import pytensor
  from pytensor import function
  from pytensor.compile.io import In
  from pytensor.misc.safe_asarray import _asarray
  from pytensor.tensor.basic import _convert_to_complex64, _convert_to_complex128, _convert_to_float32, _convert_to_float64, _convert_to_int8, _convert_to_int16, _convert_to_int32, _convert_to_int64, cast
  from pytensor.tensor.type import TensorType, bvector, dmatrix, dvector, fvector, ivector, zmatrix
label_desc: Use image node_id 5 for calling the TestCasting obj's underlying member method code with example usage: obj.test_bug_complext_10_august_09() without return types