code: def render_impl(self, template, context, at_paths=None, **kwargs):
          
          # Override the path to pass it to tenjin.Engine.
          if at_paths is not None:
              paths = at_paths + self.engine_options.get("path", [])
              self.engine_options["path"] = paths
  
          engine = tenjin.Engine(**self.engine_options)
          LOGGER.warning("engine_options=%s", str(self.engine_options))
  
          kwargs = self.filter_options(kwargs, self.render_valid_options())
          return engine.render(template, context, **kwargs)
docs: Render given template file and return the result.
  
          :param template: Template file path
          :param context: A dict or dict-like object to instantiate given
              template file
          :param at_paths: Template search paths
          :param kwargs: Keyword arguments passed to the template engine to
              render templates with specific features enabled.
  
          :return: Rendered string