code: def iscan(self, *, match=None, count=None):
          
          return _ScanIter(lambda cur: self.scan(cur,
                                                 match=match, count=count))
docs: Incrementally iterate the keys space using async for.
  
          Usage example:
  
          >>> async for key in redis.iscan(match='something*'):
          ...     print('Matched:', key)