code: def testIsSparse(self):
      self.assertFalse(sparse_tensor.is_sparse(3))
      self.assertFalse(sparse_tensor.is_sparse("foo"))
      self.assertFalse(sparse_tensor.is_sparse(np.array(3)))
      self.assertTrue(
          sparse_tensor.is_sparse(
              sparse_tensor.SparseTensor([[0]], [0], [1])
          )
      )
      self.assertTrue(
          sparse_tensor.is_sparse(
              sparse_tensor.SparseTensorValue([[0]], [0], [1])
          )
      )
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.core.framework import full_type_pb2
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import tensor
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.framework import test_util
  from tensorflow.python.framework.type_utils import fulltypes_for_flat_tensors
  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 googletest
label_desc: Use image node_id 3 for calling the SparseTensorTest obj's underlying member method code with example usage: obj.testIsSparse() without return types