def render_request(self):
        """Render as a string formatted for HTTP request headers
        (simple 'Cookie: ' style).
        """
        # Use whatever renderers are defined for name and value.
        name, value = self.name, self.value
        renderer = self.attribute_renderers.get('name', None)
        if renderer:
            name = renderer(name)
        renderer = self.attribute_renderers.get('value', None)
        if renderer:
            value = renderer(value)
        return ''.join((name, "=", value))