docs: def iter(self, match="*", count=1000):
          """ Iterates the set of keys in :prop:key_prefix in :prop:_client
              @match: #str pattern to match after the :prop:key_prefix
              @count: the user specified the amount of work that should be done
                  at every call in order to retrieve elements from the collection
  
              -> yields redis keys within this instance
          """
          replace_this = self.key_prefix+":"
          for key in self._client.scan_iter(
             match="{}:{}".format(self.key_prefix, match), count=count):
              yield self._decode(key).replace(replace_this, "", 1)