code: def testParamBroadcasting(self):
      temperature = [1.0, 1.4]
      logits = [2.0, 3.0, -4.0]
      dist = roc.RelaxedOneHotCategorical(
          temperature, logits, validate_args=True
      )
      self.assertAllEqual([2], dist.batch_shape)
      self.assertAllEqual([3], dist.event_shape)
  
imports: from absl.testing import parameterized
  import numpy
  from scipy.special import gamma
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.bijectors import identity
  from tensorflow_probability.python.distributions import relaxed_onehot_categorical
  from tensorflow_probability.python.internal import tensorshape_util
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.util import deferred_tensor
label_desc: Use image node_id 4 for calling the RelaxedOneHotCategoricalTest obj's underlying member method code with example usage: obj.testParamBroadcasting() without return types