class_docstr: Reference:
  - HF Hub: https://huggingface.co/rinna/japanese-gpt-neox-3.6b-instruction-sft
code: def preprocess_ctx(self, ctx, max_length):
      ctx = super().preprocess_ctx(
          ctx,
          max_length,
          ctx_prompt=f"ユーザー: ",
          summary_prompt=f"{self.SEP}システム: ",
      )
      ctx = ctx.replace("<NL><NL>", "<NL>")
      return ctx
  
imports: import os
  import inspect
  from lm_eval.utils import rouge2_mecab
  from lm_eval.base import rf, Task
label_desc: Use image node_id 2 for calling the XLSumJaWithRinnaInstructionSFT obj's underlying member method code with example usage: obj.preprocess_ctx(ctx, max_length) and returns: ctx