code: def testInsertMany(self):
      with self.cached_session():
          b = data_flow_ops.Barrier(
              (dtypes.float32, dtypes.float32),
              shapes=((), ()),
              name="B",
          )
          size_t = b.ready_size()
          self.assertEqual([], size_t.get_shape())
          keys = [b"a", b"b", b"c"]
          insert_0_op = b.insert_many(0, keys, [10.0, 20.0, 30.0])
          insert_1_op = b.insert_many(1, keys, [100.0, 200.0, 300.0])
  
          self.assertEqual(self.evaluate(size_t), [0])
          insert_0_op.run()
          self.assertEqual(self.evaluate(size_t), [0])
          insert_1_op.run()
          self.assertEqual(self.evaluate(size_t), [3])
  
imports: import time
  import numpy
  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
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import data_flow_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the BarrierTest obj's underlying member method code with example usage: obj.testInsertMany() without return types