{# =========================================================================

    render(block, fieldname, index)

        Imports the block's template, sets variables to be passed to the
        template's render() function, and the loop's index.

        block:

            A Page's streamfield block needed to retrieve the module template
            and necessary data to render it.

        fieldname:

            The name of the Page's streamfield the block lives under.

        index:

            The 