code: def testIncompatibleArgShapesGraph(self):
      skewness = tf.Variable(
          tf.ones([2, 3], dtype=self.dtype), shape=tf.TensorShape(None)
      )
      self.evaluate(skewness.initializer)
  
      with self.assertRaisesRegex(Exception, r"compatible shapes"):
          dist = two_piece_normal.TwoPieceNormal(
              loc=tf.zeros([4, 1], dtype=self.dtype),
              scale=tf.ones([4, 1], dtype=self.dtype),
              skewness=skewness,
              validate_args=True,
          )
          self.evaluate(dist.mean())
  
imports: import itertools
  from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import two_piece_normal
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.math import gradient
label_desc: Use image node_id 25 for calling the _TwoPieceNormalTest obj's underlying member method code with example usage: obj.testIncompatibleArgShapesGraph() without return types