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function scpt_demo() {
    if ( ! class_exists( 'Super_Custom_Post_Type' ) )
        return;

    $demo_posts = new Super_Custom_Post_Type( 'demo-post' );

    # Test Icon. Should be a square grid.
    $demo_posts->set_icon( 'th-large' );

    # Taxonomy test, should be like tags
    $tax_tags = new Super_Custom_Taxonomy( 'tax-tag' );

    # Taxonomy test, should be like categories
    $tax_cats = new Super_Custom_Taxonomy( 'tax-cat', 'Tax Cat', 'Tax Cats', 'category' );

    # Connect both of the above taxonomies with the post type
    connect_types_and_taxes( $demo_posts, array( $tax_tags, $tax_cats ) );

    # Add a meta box with every field type
    $demo_posts->add_meta_box( array(
        'id'      => 'demo-fields',
        'context' => 'normal',
        'fields'  => array(
            'textbox-demo'        => array(),
            'textarea-demo'       => array( 'type' => 'textarea' ),
            'wysiwyg-demo'        => array( 'type' => 'wysiwyg' ),
            'boolean-demo'        => array( 'type' => 'boolean' ),
            'checkboxes-demo'     => array( 'type' => 'checkbox', 'options' => array( 'one', 'two', 'three' ) ),
            'radio-buttons-demo'  => array( 'type' => 'radio',    'options' => array( 'one', 'two', 'three' ) ),
            'select-demo'         => array( 'type' => 'select',   'options' => array( 1 => 'one', 2 => 'two', 3 => 'three' ) ),
            'multi-select-demo'   => array( 'type' => 'select',   'options' => array( 'one', 'two', 'three' ), 'multiple' => 'multiple' ),
            'date-demo'           => array( 'type' => 'date' ),
            'label-override-demo' => array( 'label' => 'Label Demo' )
        )
    ) );

    # Add another CPT to test one-to-one (it could just as easily be one-to-many or many-to-many) relationships
    $linked_posts = new Super_Custom_Post_Type( 'linked-post', 'Other Post', 'Other Posts' );
    $linked_posts->add_meta_box( array(
        'id'      => 'one-to-one',
        'title'   => 'Testing One-to-One relationship',
        'context' => 'side',
        'fields'  => array(
            'demo-posts'   => array( 'type' => 'select', 'data' => 'demo-post' ),
            'side-wysiwyg' => array( 'type' => 'wysiwyg' )
        )
    ) );
    $linked_posts->set_icon( 'cogs' );
}
add_action( 'after_setup_theme', 'scpt_demo' );