code: def result(retn):
      '''
      Return a value or raise an exception from a retn tuple.
      '''
      ok, valu = retn
  
      if ok:
          return valu
  
      name, info = valu
  
      ctor = getattr(s_exc, name, None)
      if ctor is not None:
          raise ctor(**info)
  
      info['errx'] = name
      raise s_exc.SynErr(**infof result(retn):
      '''
      Return a value or raise an exception from a retn tuple.
      '''
      ok, valu = retn
  
      if ok:
          return valu
  
      name, info = valu
  
      ctor = getattr(s_exc, name, None)
      if ctor is not None:
          raise ctor(**info)
  
      info['errx'] = name
      raise s_exc.SynErr(**info)
docs: Return a value or raise an exception from a retn tuple.