code: def test_likelihood_parent_inferred():
      lh1 = bmb.Likelihood("Normal", parent="mu")
      lh2 = bmb.Likelihood("Normal")
      assert lh1.parent == lh2.parent
  
imports: from os.path import dirname, join
  import pytest
  import numpy
  import pymc
  import pandas
  from scipy import special
  import bambi
label_desc: Use image node_id 5 for calling a global function with example usage: test_likelihood_parent_inferred() without return types