'Get session information about a subject gotten from a
specified IdP/AA.
:param item: Information stored
:return: The session information as a dictionary'

def get_info(self, item, check_not_on_or_after=True):

    try:
        (timestamp, info) = item
    except ValueError:
        raise ToOld()
    if (check_not_on_or_after and (not time_util.not_on_or_after(timestamp))):
        raise ToOld()
    return (info or None)
