class_docstr: Same class as `aix360.algorithms.rbm.boolean_rule_cg.BooleanRuleCG`, the only 
  difference being that the explanations are available in the Technical Rule 
  Exchange Format (TRXF). 
code: def __init__(self, *args, **kwargs):
      super().__init__(*args, **kwargs)
  
imports: from aix360.algorithms.rbm import BooleanRuleCG
  from ..trxf.core.dnf_ruleset import DnfRuleSet, Conjunction
  from ..trxf.core.predicate import Predicate, Feature
  from .utils import OPERATOR_MAPS
label_desc: Use image node_id 1 to create a new BooleanRuleCG object from inherited base classes: brcg with example: obj = BooleanRuleCG()