docstr: Get the best Prophet model.
docstr_tok: ["Get","the","best","Prophet","model","."]
code: def get_best_model(self):
      """
      Get the best Prophet model.
      """
      return self.best_model.model
  
file_path: BigDL/python/chronos/src/bigdl/chronos/autots/model/auto_prophet.py
imports: import pandas
  import warnings
  from bigdl.chronos.model.prophet import ProphetBuilder, ProphetModel
  from bigdl.chronos.autots.utils import recalculate_n_sampling
label_desc: Use image node_id 7 for calling the AutoProphet obj's underlying member method code with example usage: obj.get_best_model() and returns: self