code: def in_cache(self, cache_key, key):
      if key is None:
          return cache_key in self.loaded_models
      return f"{cache_key}_key={key}" in self.loaded_models
  
imports: from collections import OrderedDict
  import gc
  import logging
  import functools
  import psutil
  from finetune.target_models.sequence_labeling import SequenceLabeler
  import tensorflow
  from finetune.base import BaseModel
  from finetune.custom_ops import BytesInUse, BytesLimit, MaxBytesInUse
  from finetune.errors import FinetuneSchedulerError
label_desc: Use image node_id 13 for calling the Scheduler obj's underlying member method code with example usage: obj.in_cache(cache_key, key) and returns: unknown, unknown