@abc.abstractmethod<EOL><INDENT>def supports_visible_federation(self):<DEDENT>
return<EOL>
Tests if any transport endpoint federation is exposed.

        Federation is exposed when a specific endpoint may be used.
        Federation is not exposed when a set of endpoints appears as a
        single endpoint.

        :return: ``true`` if federation is visible ``false`` otherwise
        :rtype: ``boolean``


        *compliance: mandatory -- This method must be implemented.*