docstr: Test that uniques are correctly computed for tensors.
docstr_tok: ["Test","that","uniques","are","correctly","computed","for","tensors","."]
code: def test_tensor_uniques(self):
      """Test that uniques are correctly computed for tensors."""
      t = torch.zeros(10)
      da = DataAttribute(t, "task_labels")
      self.assertEqual(da.uniques, {0.0})
  
file_path: avalanche/tests/benchmarks/utils/test_data_attribute.py
imports: import unittest
  import numpy
  import torch
  from avalanche.benchmarks.utils import _taskaware_classification_subset, make_avalanche_dataset
  from avalanche.benchmarks.utils.data_attribute import DataAttribute, TensorDataAttribute
label_desc: Use image node_id 1 for calling the DataAttributeTests obj's underlying member method code with example usage: obj.test_tensor_uniques() without return types