(which can be
NULL if the option has not been set). To clear the setting, pass NULL as an
argument.
aw_auth_with sets the type of authorization for the session. This is used
as the default by aw_auth() when no specific option is given.
aw_auth_path sets the file path for the cached authorization token. It
should be a directory, rather than a filename. If this option is not set, the
current working directory is used instead.
aw_auth_name sets the file name for the cached authorization token. If this
option i