onal
        If true, will treat input as newly elapsed iterations,
        i.e. numbers to pass to `update()`. Note that this is slow
        (~2e5 it/s) since every input must be decoded as a number.
    update_to  : bool, optional
        If true, will treat input as total elapsed iterations,
        i.e. numbers to assign to `self.n`. Note that this is slow
        (~2e5 it/s) since every input must be decoded as a number.
    null  : bool, optional
        If true, will discard input (no stdout).
    manpath  : str, optional
        Directory in which to install tqdm man pages.
    comppath  : str, optional
        Directory in which to place tqdm completion.
    log  : str, optional
        CRITICAL|FATAL|ERROR|WARN(ING)|[default: 'INFO']|DEBUG|NOTSET.
c