code: def decode(self, tokens):
      return "".join([chr(x) for x in tokens])
  
file_path: summarize-from-feedback/summarize_from_feedback/test_tasks.py
imports: import pytest
  import torch
  from summarize_from_feedback import tasks
  from summarize_from_feedback.query_response_model import PADDING_TOKEN
  from summarize_from_feedback.utils.assertions import assert_eq
label_desc: Use image node_id 2 for calling the TestEncoder obj's underlying member method code with example usage: obj.decode(tokens) and returns: str