class_docstr: Tests for deprecated non-resource variant of stack ops.
code: def _testCloseStack(self, use_gpu):
      with self.cached_session(use_gpu=use_gpu) as sess:
          h = gen_data_flow_ops._stack(dtypes.float32, stack_name="foo")
          c1 = gen_data_flow_ops.stack_close(h)
          self.evaluate(c1)
  
imports: import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  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 gen_data_flow_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import while_loop
  from tensorflow.python.platform import test
label_desc: Use image node_id 11 for calling the StackOpRefTest obj's underlying member method code with example usage: obj._testCloseStack(use_gpu) without return types