code: def _SparseTensorPlaceholder(self):
      return sparse_tensor.SparseTensor(
          array_ops.placeholder(dtypes.int64),
          array_ops.placeholder(dtypes.float64),
          array_ops.placeholder(dtypes.int64),
      )
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gen_sparse_ops
  from tensorflow.python.ops import gradient_checker
  from tensorflow.python.ops import sparse_ops
  import tensorflow.python.ops.sparse_grad
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the SparseReorderTest obj's underlying member method code with example usage: obj._SparseTensorPlaceholder() and returns: sparse_tensor