Used to render out all informal parameters, at the end of the
This mixin can be used with components that render a single tag inside the
will activate during the PostBeginRender phase to write additional attributes, from the informal parameters, into the
If you want this behavior, but need to render more than a single tag, then implement render phase methods for the
phases. Use those phases to write the additional
elements and close them.
This is often used as a base class, for cases where a component doesn't have other mixins.