code: def getFormula(self):
      lFormula = self.mTrend.mFormula + " + "
      lFormula += self.mCycle.mFormula + " + "
      lFormula += self.mAR.mFormula
      return lFormula
  
imports: import pandas
  import numpy
  from .None import PredictionIntervals
  from .None import Plots
  from .None import Perf
  from .None import Utils
label_desc: Use image node_id 7 for calling the cTimeSeriesModel obj's underlying member method code with example usage: obj.getFormula() and returns: lFormula