code: def complete_next(self, count=1, disable_wrap_around=False):
          
          if self.complete_state:
              completions_count = len(self.complete_state.current_completions)
  
              if self.complete_state.complete_index is None:
                  index = 0
              elif self.complete_state.complete_index == completions_count - 1:
                  index = None
  
                  if disable_wrap_around:
                      return
              else:
                  index = min(completions_count-1, self.complete_state.complete_index + count)
              self.go_to_completion(index)
docs: Browse to the next completions.
          (Does nothing if there are no completion.)