code: def test_locus_pickle():
      x = hl.Locus("1", 123)
      assert x == pickle.loads(pickle.dumps(x))
  
file_path: hail/hail/python/test/hail/utils/test_pickle.py
imports: import pickle
  import dill
  import hail
label_desc: Use image node_id 5 for calling a global function with example usage: test_locus_pickle() without return types