code: def huang_darwiche_jt(huang_darwiche_dag):
      def priority_func_override(node):
          introduced_arcs = 0
          cluster = [node] + node.neighbours
          for node_a, node_b in combinations(cluster, 2):
              if node_a not in node_b.neighbours:
                  assert node_b not in node_a.neighbours
                  introduced_arcs += 1
          introduced_arcs_dict = {
              "f_h": [introduced_arcs, 0],
              "f_g": [introduced_arcs, 1],
              "f_c": [introduced_arcs, 2],
              "f_b": [introduced_arcs, 3],
              "f_d": [introduced_arcs, 4],
              "f_e": [introduced_arcs, 5],
              "others": [introduced_arcs, 10],
          }
          if node.name in introduced_arcs_dict:
              return introduced_arcs_dict[node.name]
  
          return introduced_arcs_dict["others"]
  
      dag = huang_darwiche_dag
      jt = build_join_tree(dag, priority_func_override)
      return jt
  
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 6 for calling a global function with example usage: huang_darwiche_jt(huang_darwiche_dag) and returns: jt, introduced_arcs_dict, introduced_arcs_dict