class_docstr: Tests correctness of the Y = g(X) = X transformation.
code: def testScalarCongruency(self):
      with self.cached_session():
          bijector = identity_bijector.Identity()
          bijector_test_util.assert_scalar_congruency(
              bijector, lower_x=-2.0, upper_x=2.0
          )
  
imports: from tensorflow.python.framework import test_util
  from tensorflow.python.ops.distributions import bijector_test_util
  from tensorflow.python.ops.distributions import identity_bijector
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the IdentityBijectorTest obj's underlying member method code with example usage: obj.testScalarCongruency() without return types