class_docstr: base model for automl tuning
class_docstr_tok: ["base","model","for","automl","tuning"]
docstr: Save the model at the provided checkpoint.
  :param checkpoint: (str) Path to the target checkpoint file.
  
  :return: checkpoint path
docstr_tok: ["Save","the","model","at","the","provided","checkpoint",".",":","param","checkpoint",":","(","str",")","Path","to","the","target","checkpoint","file",".",":","return",":","checkpoint","path"]
code: def save(self, checkpoint):
      """
      Save the model at the provided checkpoint.
      :param checkpoint: (str) Path to the target checkpoint file.
  
      :return: checkpoint path
      """
      pass
  
file_path: BigDL/python/orca/src/bigdl/orca/automl/model/abstract.py
imports: from abc import ABC, abstractmethod
  from bigdl.dllib.utils.log4Error import *
label_desc: Use image node_id 2 for calling the BaseModel obj's underlying member method code with example usage: obj.save(checkpoint) without return types