code: def make_chunks(self,length,overlap=0,play=0,sl=0,excl_play=0,pad_data=0):
      
      for seg in self.__sci_segs:
        seg.make_chunks(length,overlap,play,sl,excl_play,pad_data)
docs: Divide each ScienceSegment contained in this object into AnalysisChunks.
      @param length: length of chunk in seconds.
      @param overlap: overlap between segments.
      @param play: if true, only generate chunks that overlap with S2 playground
      data.
      @param sl: slide by sl seconds before determining playground data.
      @param excl_play: exclude the first excl_play second from the start and end
      of the chunk when computing if the chunk overlaps with playground.