rerun( [arg] )
    Reruns previous commands.

    If provided an integer, the previous `n` commands are re-executed.

    If provided a regular expression, the most recent command matching the
    regular expression is rerun.

    If provided an array of command identifiers, the command corresponding to
    each identifier is rerun.

    If provided a subsequence string, the command corresponding to each resolved
    command identifier is rerun.

    Parameters
    ----------
    arg: integer|string|RegExp|Array (optional)
    	Command filter. Default: 1.

    Examples
    --------
    > 1+1
    2
    > rerun()

    See Also
    --------
    history