code: def avg_num_queries(self):
      avg_num_queries = self.num_queries.mean()
      avg_num_queries = round(avg_num_queries, 2)
      return avg_num_queries
  
file_path: TextAttack/textattack/metrics/attack_metrics/attack_queries.py
imports: import numpy
  from textattack.attack_results import SkippedAttackResult
  from textattack.metrics import Metric
label_desc: Use image node_id 3 for calling the AttackQueries obj's underlying member method code with example usage: obj.avg_num_queries() and returns: avg_num_queries