Function callback

pager_lib/tqdm/cli.py:300–301

(i)

                with tqdm(**tqdm_args) as t:
                    if update:
                        def callback(i):
                            t.update(numeric(i.decode()))
                    else:  # update_to
                        def callback(i):
                            t.update(numeric(i.decode()) - t.n)