code: def testIncompatibleArgShapes(self):
      scale = tf1.placeholder_with_default(tf.ones([4, 1]), shape=None)
      with self.assertRaisesRegexp(Exception, r"Incompatible shapes"):
          d = johnson_su.JohnsonSU(
              skewness=1.0,
              tailweight=2.0,
              loc=tf.zeros([2, 3]),
              scale=scale,
              validate_args=True,
          )
          self.evaluate(d.batch_shape_tensor())
  
imports: import math
  import numpy
  from scipy import stats
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import johnson_su
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.math import gradient
label_desc: Use image node_id 29 for calling the JohnsonSUTest obj's underlying member method code with example usage: obj.testIncompatibleArgShapes() without return types