code: def __str__(self):
      if len(self.predicates) == 0:
          return "true"
      else:
          return " ^ ".join(
              ["[" + str(x) + "]" for x in self._predicates]
          )
  
file_path: AIX360/aix360/algorithms/rule_induction/trxf/core/conjunction.py
imports: from typing import Dict, Any, List
  from aix360.algorithms.rule_induction.trxf.core.boolean_evaluator import BooleanEvaluator
  from aix360.algorithms.rule_induction.trxf.core.predicate import Predicate
  from aix360.algorithms.rule_induction.trxf.core.utils import set_equality
label_desc: Use image node_id 7 for calling the Conjunction obj's underlying member method code with example usage: obj.__str__() and returns: str, str