code: def setup_method(self, method):
      self.token_counter = AI21TokenCounter()
  
imports: from typing import List
  from helm.common.request import Request, Sequence, Token
  from .ai21_token_counter import AI21TokenCounter
label_desc: Use image node_id 1 for calling the TestAI21TokenCounter obj's underlying member method code with example usage: obj.setup_method(method) without return types