code: def process_results(self, doc, results):
      retval = 0
      indices = [
          pos for pos, char in enumerate(results[0]) if char == "$"
      ]
      if len(indices) <= 1:
          answer = results[0]
      else:
          answer = results[0][indices[0] + 1 : indices[-1]]
  
      if self.is_equiv(
          answer,
          self.remove_boxed(
              self.last_boxed_only_string(doc["solution"])
          ),
      ):
          retval = 1
      return {"acc": retval}
  
imports: import inspect
  import lm_eval.datasets.hendrycks_math.hendrycks_math
  from lm_eval.metrics import mean
  from lm_eval.base import Task, rf
label_desc: Use image node_id 13 for calling the Math obj's underlying member method code with example usage: obj.process_results(doc, results) and returns: dict