code: def _day_of_year(self):
      dayYear = np.array(self.dti.dayofyear, dtype=np.float32)
      if self.normalized:
          dayYear = dayYear / 364.0 - 0.5
      return dayYear
  
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 6 for calling the TimeCovariates obj's underlying member method code with example usage: obj._day_of_year() and returns: dayYear