code: def _month_of_year(self):
      monthYear = np.array(self.dti.month, dtype=np.float32)
      if self.normalized:
          monthYear = monthYear / 11.0 - 0.5
      return monthYear
  
file_path: BigDL/python/chronos/src/bigdl/chronos/model/tcmf/time.py
imports: import pandas
  import numpy
  from packaging import version
label_desc: Use image node_id 7 for calling the TimeCovariates obj's underlying member method code with example usage: obj._month_of_year() and returns: monthYear