code: def remove_except_score_cutoff(chats, score_cutoff):
      return [c for c in chats if c["score"] == score_cutoff]
  
imports: import random
  import io
  import os
  import json
  from parlai.utils.misc import msg_to_str
label_desc: Use image node_id 19 for calling a global function with example usage: remove_except_score_cutoff(chats, score_cutoff) and returns: unknown