def METHOD_NAME():
    """
    Tab layout for output parameters, populated from
    ``properties_metadata.json``.
    """
    app = widgets.Tab()
    children = []
    properties_metadata = Path("properties_metadata.json")
    with properties_metadata.open() as f:
        data = json.load(f)
    for i, title in enumerate(data):
        grid_layout = widgets.GridspecLayout(10, 2, width="100%")
        for j, prop in enumerate(data[title]):
            fn = _FunctionInfo(prop["module_name"], prop["function_name"])
            if "spec_combo" in prop:
                for spec_combo in prop["spec_combo"]:
                    fn.add_combo(spec_combo)
            grid_layout[j, 0] = _create_label(prop["function_name"] + ":")
            grid_layout[j, 1] = fn.get_output_widget()
            _process_queue.append(fn)
        children.append(grid_layout)
        app.set_title(i, title)
    app.children = children
    return app