code: def test_feats_converters():
      feats = "Case=dat,gen|Number=sing"
      feats_dict = {"Case": "dat,gen", "Number": "sing"}
  
      # simple conversions
      assert Morphology.dict_to_feats(feats_dict) == feats
      assert Morphology.feats_to_dict(feats) == feats_dict
  
      # roundtrips
      assert (
          Morphology.dict_to_feats(Morphology.feats_to_dict(feats))
          == feats
      )
      assert (
          Morphology.feats_to_dict(Morphology.dict_to_feats(feats_dict))
          == feats_dict
      )
  
      # unsorted input is normalized
      unsorted_feats = "Number=sing|Case=gen,dat"
      unsorted_feats_dict = {"Case": "gen,dat", "Number": "sing"}
      assert Morphology.feats_to_dict(unsorted_feats) == feats_dict
      assert Morphology.dict_to_feats(unsorted_feats_dict) == feats
      assert (
          Morphology.dict_to_feats(
              Morphology.feats_to_dict(unsorted_feats)
          )
          == feats
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_feats_converters() without return types