class_docstr: Test the utility function detach.
class_docstr_tok: ["Test","the","utility","function","detach","."]
docstr: Test that detach works with Tensorflow.
docstr_tok: ["Test","that","detach","works","with","Tensorflow","."]
code: def test_tf(self):
      """Test that detach works with Tensorflow."""
  
      x = tf.Variable(0.3)
      assert x.trainable is True
      detached_x = fn.detach(x)
      assert not hasattr(detached_x, "trainable")
      with tf.GradientTape() as t:
          out = fn.detach(x)
      jac = t.jacobian(out, x)
      assert jac is None
  
imports: import autoray
  import numpy
  import pytest
  import scipy
  from autoray import numpy
  from pennylane import math
  from pennylane import numpy
  from pennylane import grad
label_desc: Use image node_id 5 for calling the TestDetach obj's underlying member method code with example usage: obj.test_tf() without return types