code: def testIntegerIdentityGradient(self, use_tape):
      x = constant_op.constant(3)
      with test_util.AbstractGradientTape(use_tape=use_tape) as tape:
          tape.watch(x)
          dx_dx = tape.gradient(x, x)
      self.assertAllClose(1, self.evaluate(dx_dx))
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.eager import context
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 3 for calling the GradientCorrectnessTest obj's underlying member method code with example usage: obj.testIntegerIdentityGradient(use_tape) without return types