docs: def _routes(self, app):
          """ list of routes (you should have the app where this is register)
          """
          _routes = []
          prefix = self.url_prefix if self.url_prefix is not None else ""
          for rule in app.url_map.iter_rules():
              if str(rule).startswith(prefix):
                  _routes.append({
                      'path':rule.rule,
                      'name':rule.endpoint,
                      'methods':list(rule.methods)
                  })
          returns = {
              'api': self.name,
              'url_root': request.url_root,
              'routes': _routes
          }
          return jsonify(returns)