code: def voting_counts(responses):
      answers = {}
      for i in range(len(responses)):
          equiv = i
          if get_answer(responses[i]) is None:
              # ignore None answers
              continue
          for j in answers:
              if is_equiv_chain_of_thought(responses[i], responses[j]):
                  equiv = j
                  break
          if equiv in answers:
              answers[equiv] += 1
          else:
              answers[equiv] = 1
      return answers
  
file_path: autogen/autogen/math_utils.py
imports: from typing import Optional
  from autogen import oai, DEFAULT_MODEL
label_desc: Use image node_id 12 for calling a global function with example usage: voting_counts(responses) and returns: answers