code: def test_normal():
      t = nni.normal("x", 0, 1)
      assert repr(t) == "Numerical(-inf, inf, mu=0, sigma=1, label='x')"
      assert -4 < t.random() < 4
  
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 7 for calling a global function with example usage: test_normal() without return types