docs: def toLily(self):
          '''
          Method which converts the object instance, its attributes and children to a string of lilypond code
  
          :return: str of lilypond code
          '''
          lilystring = ""
          left_barline = self.GetBarline("left")
          other_lefts = self.GetBarline("left-1")
          if other_lefts is not None:
              for left in other_lefts:
                  lilystring += left.toLily()
  
          if left_barline is not None:
              lilystring += left_barline.toLily()
  
          lilystring += self.HandleAttributes()
          voices = self.GetChildrenIndexes()
  
          if not hasattr(self, "value"):
              self.value = self.GetTotalValue()
          if len(voices) > 1:
              lilystring += "<<"
          for voice in voices:
              mid_barline = self.GetBarline("middle")
              v_obj = self.getVoice(voice)
              v_obj.autoBeam = self.autoBeam
              if mid_barline is not None:
                  v_obj.mid_barline = mid_barline[0]
              v_obj.total = self.value
              if len(voices) > 1:
                  lilystring += " % voice " + str(voice) + "\n"
                  lilystring += "\\new Voice = \"" + \
                      helpers.NumbersToWords(voice) + "\"\n"
                  lilystring += "{\\voice" + \
                      helpers.NumbersToWords(voice).capitalize() + " "
              lilystring += v_obj.toLily()
              if len(voices) > 1:
                  lilystring += "}"
          if len(voices) > 1:
              lilystring += ">>"
          lilystring += self.HandleClosingAttributes()
          right_barline = self.GetBarline("right")
          other_rights = self.GetBarline("right-1")
          if other_rights is not None:
              for right in other_rights:
                  lilystring += right.toLily()
  
          if right_barline is not None:
              lilystring += right_barline.toLily()
          else:
              lilystring += " | "
          return lilystring