code: def simplefenestration(idf, fsd, deletebsd=True, setto000=False):
      
      funcs = (window,
          door,
          glazeddoor,)
      for func in funcs:
          fenestration = func(idf, fsd, deletebsd=deletebsd, setto000=setto000)
          if fenestration:
              return fenestration
      return None
docs: convert a bsd (fenestrationsurface:detailed) into a simple 
      fenestrations