code: def fewshot_context(self, doc, num_fewshot, **kwargs):
      max_length = self.max_length - self.max_gen_toks
  
      # If the prompt is too long with fewshot examples, reduce the number of
      # examples until it fits.
      while num_fewshot >= 0:
          ctx = super().fewshot_context(doc, num_fewshot, **kwargs)
          if len(self._tokenize(ctx)) <= max_length:
              doc["context"] = ctx
              return ctx
          num_fewshot -= 1
  
      # if we got here then even 0 fewshot is too long
      return ValueError(
          f"0-shot prompt is too long for max length {max_length}:\n{ctx}"
      )
  
imports: import os
  from lm_eval.base import rf
  from lm_eval.tasks.gsm8k import GradeSchoolMath8K, INVALID_ANS
  import re
  import inspect
label_desc: Use image node_id 3 for calling the MGSM obj's underlying member method code with example usage: obj.fewshot_context(doc, num_fewshot) and returns: ValueError, ctx