class_docstr: Callback to save multi_gpu_model
class_docstr_tok: ["Callback","to","save","multi_gpu_model"]
docstr: set the model to saved
docstr_tok: ["set","the","model","to","saved"]
code: def set_model(self, model):
      """set the model to saved"""
      super().set_model(self.model_to_save)
  
imports: from absl import logging
  import delta.compat
  import numpy
  from tensorflow.keras.callbacks import Callback
  from tensorflow.keras.callbacks import ModelCheckpoint
  from tensorflow.keras import backend
  from sklearn import metrics
  from tensorflow.python.data.ops import iterator_ops
  from tensorflow.python.data.ops import dataset_ops
  from delta.utils.decode import py_ctc
  from delta.utils.decode import tf_ctc
  from delta.utils import metrics
label_desc: Use image node_id 2 for calling the ParallelModelCheckpoint obj's underlying member method code with example usage: obj.set_model(model) without return types