code: def _default_train_config(self):
      return MSESTrainConfig(
          train_cadence=1 if self.online_updates else None
      )
  
file_path: merlion/merlion/models/anomaly/forecast_based/mses.py
imports: import pandas
  from merlion.models.anomaly.forecast_based.base import ForecastingDetectorBase
  from merlion.models.anomaly.base import DetectorConfig
  from merlion.models.forecast.smoother import MSESConfig, MSES, MSESTrainConfig
  from merlion.post_process.threshold import AggregateAlarms
  from merlion.utils.time_series import TimeSeries
label_desc: Use image node_id 2 for calling the MSESDetector obj's underlying member method code with example usage: obj._default_train_config() and returns: MSESTrainConfig