code: def huang_darwiche_dag(huang_darwiche_nodes):
      nodes = huang_darwiche_nodes
      return build_bbn(nodes)
  
file_path: causalnex/tests/ebaybbn/conftest.py
imports: import pytest
  from causalnex.ebaybbn import BBN, Node, build_bbn, build_join_tree, combinations, make_moralized_copy, make_undirected_copy
  from causalnex.ebaybbn.utils import make_key
label_desc: Use image node_id 4 for calling a global function with example usage: huang_darwiche_dag(huang_darwiche_nodes) and returns: build_bbn