code: def simplesurface(idf, bsd, deletebsd=True, setto000=False):
      
      funcs = (wallexterior,
          walladiabatic,
          wallunderground,
          wallinterzone,
          roof,
          ceilingadiabatic,
          ceilinginterzone,
          floorgroundcontact,
          flooradiabatic,
          floorinterzone,)
      for func in funcs:
          surface = func(idf, bsd, deletebsd=deletebsd, setto000=setto000)
          if surface:
              return surface
      return None
docs: convert a bsd (buildingsurface:detailed) into a simple surface