code: def testAccumulatorSizeEmpty(self):
      with self.cached_session():
          q = data_flow_ops.ConditionalAccumulator(
              dtypes_lib.float32, name="Q"
          )
          self.assertEqual(q.num_accumulated().eval(), 0)
  
imports: import time
  import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import ops
  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 data_flow_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import state_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the ConditionalAccumulatorTest obj's underlying member method code with example usage: obj.testAccumulatorSizeEmpty() without return types