    # File lib/ramaze/helper/user.rb, line 183
            def _login(creds = nil)
              if creds
                if @_user = _would_login?(creds)
                  Current.session.resid!
                  self._persistence = {:credentials => creds}
                end
              elsif persistence = self._persistence
                @_user = _would_login?(persistence[:credentials])
              end
            end