code: def testZeroDefault(self):
      x = sparse_ops.sparse_to_dense(2, [4], 7)
      self.assertAllEqual(x, [0, 0, 7, 0])
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  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 import sparse_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 9 for calling the SparseToDenseTest obj's underlying member method code with example usage: obj.testZeroDefault() without return types