code: def test_choice():
      t = nni.choice("t", ["a", "b", "c"])
      assert repr(t) == "Categorical(['a', 'b', 'c'], label='t')"
  
file_path: nni/test/ut/sdk/mutable/test_shortcut.py
imports: from collections import Counter
  import nni
  from nni.mutable._notimplemented import randint, lognormal, qlognormal
label_desc: Use image node_id 1 for calling a global function with example usage: test_choice() without return types