code: def test_get_known_feats(pos_pipeline):
      feats = pos_pipeline.processors["pos"].get_known_feats()
      # I appreciate how self-referential the Abbr feat is
      assert "Abbr" in feats
      assert "Yes" in feats["Abbr"]
  
imports: import pytest
  import stanza
  from stanza.tests import *
label_desc: Use image node_id 5 for calling a global function with example usage: test_get_known_feats(pos_pipeline) without return types