docs: def render_templates(self, templates, filepath=None):
          """Render a collection of :class:`jinja2.Template` objects.
  
          :param templates:
              A collection of Templates to render.
  
          :param filepath:
              Optional. A file or file-like object to dump the complete template
              stream into. Defaults to to ``os.path.join(self.outpath,
              template.name)``.
  
          """
          for template in templates:
              self.render_template(template, filepath)