code: def test_object_similarity():
      dataset = foz.load_zoo_dataset("quickstart").clone()
  
      fob.compute_similarity(
          dataset,
          patches_field="ground_truth",
          brain_key="gt_similarity",
      )
  
      patches = dataset.to_patches("ground_truth")
      obj_similarity = patches.sort_by_similarity(patches.first().id)
      print(obj_similarity)
  
      session = fo.launch_app(view=obj_similarity, desktop=True)
      session.wait()
  
imports: import unittest
  import fiftyone
  import fiftyone.brain
  import fiftyone.zoo
label_desc: Use image node_id 2 for calling a global function with example usage: test_object_similarity() without return types