docstr: Initialize Model
docstr_tok: ["Initialize","Model"]
code: def __init__(self):
      """
      Initialize Model
      """
      self.seasonal = True
      self.metric = "mse"
      self.model = None
      self.model_init = False
  
file_path: BigDL/python/chronos/src/bigdl/chronos/model/arima.py
imports: import os
  import pickle
  from pmdarima.arima import ARIMA
  from pmdarima.arima import ndiffs
  from pmdarima.arima import nsdiffs
  from bigdl.chronos.metric.forecast_metrics import Evaluator
label_desc: Use image node_id 1 to create a new ARIMAModel object  with example: obj = ARIMAModel()