code: def add_num_completion_tokens(self, num_tokens: int):
      self.total_max_num_completion_tokens += num_tokens
  
file_path: H2O/h2o_hf/helm/scripts/estimate_cost.py
imports: import argparse
  import json
  import os
  from collections import defaultdict
  from dataclasses import dataclass
  from typing import Dict
label_desc: Use image node_id 3 for calling the ModelCost obj's underlying member method code with example usage: obj.add_num_completion_tokens(num_tokens) without return types