public function __construct($title, $key, $location, $menu_order = 1, $settings = [])
{
// Since the result of using this class will be an array,
// we might as well store everything in an array right away.
$base_settings = ['key' => $key, 'title' => $title, 'fields' => [], 'location' => $location, 'menu_order' => $menu_order, 'position' => 'normal', 'style' => 'default', 'label_placement' => 'top', 'instruction_placement' => 'label', 'hide_on_screen' => []];
$this->settings = array_merge($base_settings, $settings);
}