Array
(
    [availability] => Array
        (
            [type] => checkboxes
            [data] => Array
                (
                )

        )

    [type] => Array
        (
            [type] => checkboxes
            [data] => Array
                (
                )

        )

    [pub_year] => Array
        (
            [type] => slider
            [data] => Array
                (
                )

        )

    [publishers] => Array
        (
            [type] => checkboxes
            [data] => Array
                (
                )

        )

    [contributors] => Array
        (
            [type] => filtered_checkboxes
            [data] => Array
                (
                )

        )

    [original_lang] => Array
        (
            [type] => filtered_checkboxes
            [data] => Array
                (
                )

        )

    [tag] => Array
        (
            [type] => tags
            [data] => Array
                (
                )

        )

    [recent] => Array
        (
        )

    [popular] => Array
        (
        )

    [category] => Array
        (
        )

    [subject] => Array
        (
        )

    [awards] => Array
        (
        )

)