code: async def get(self, request):
          
          form = await self.get_form(request)
          ctx = dict(active=self, form=form, request=request)
          if self.resource:
              return self.app.ps.jinja2.render(self.template_item, **ctx)
          return self.app.ps.jinja2.render(self.template_list, **ctx)
docs: Get collection of resources.