Sets the cookie based on C<cookie_name> in the response object.
+=item calc_expiry
+
+=item calculate_session_cookie_expires
+
+=item cookie_is_rejecting
+
+=item delete_session_id
+
+=item extend_session_id
+
+=item get_session_cookie
+
+=item get_session_id
+
+=item set_session_id
+
=back
=head1 EXTENDED METHODS