Gets an opaque identifier for @auth, for use as a hash key or the
like. #SoupAuth objects from the same server with the same
identifier refer to the same authentication domain (eg, the URLs
associated with them take the same usernames and passwords).
Gets an opaque identifier for @auth, for use as a hash key or the like. #SoupAuth objects from the same server with the same identifier refer to the same authentication domain (eg, the URLs associated with them take the same usernames and passwords).