code: def testSimpleShapes(self):
      with self.cached_session():
          p = [0.1, 0.3, 0.6]
          dist = multinomial.Multinomial(total_count=1.0, probs=p)
          self.assertEqual(3, dist.event_shape_tensor().eval())
          self.assertAllEqual([], dist.batch_shape_tensor())
          self.assertEqual(
              tensor_shape.TensorShape([3]), dist.event_shape
          )
          self.assertEqual(
              tensor_shape.TensorShape([]), dist.batch_shape
          )
  
imports: import numpy
  from tensorflow.python.eager import backprop
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops.distributions import multinomial
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the MultinomialTest obj's underlying member method code with example usage: obj.testSimpleShapes() without return types