code: def doc_to_target(self, doc):
      return " " + doc["solution"]
  
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 11 for calling the Math obj's underlying member method code with example usage: obj.doc_to_target(doc) and returns: unknown