Only show meta box on page with template named this-template.php

Just bought the plugin, what do we need to do to hide this metabox for every page except those with page template this-template.php

function testmeta( $meta_boxes ) {
    $prefix = 'swed-';

    $meta_boxes[] = array(
        'id' => 'vendoroptions',
        'title' => esc_html__( 'Vendors', 'metabox-online-generator' ),
        'post_types' => array( 'page' ),
        'context' => 'after_title',
        'priority' => 'high',
        'autosave' => false,
        'fields' => array(
            array(
                'id' => $prefix . 'mainphoto',
                'type' => 'image_advanced',
                'name' => esc_html__( 'Main Photo', 'metabox-online-generator' ),
            ),
            array(
                'id' => $prefix . 'appt-2',
                'type' => 'wysiwyg',
                'name' => esc_html__( 'Appointment', 'metabox-online-generator' ),
            ),
            array(
                'id' => $prefix . 'logo',
                'type' => 'image_advanced',
                'name' => esc_html__( 'Vendor Logo', 'metabox-online-generator' ),
            ),
            array(
                'id' => $prefix . 'desc',
                'name' => esc_html__( 'Description', 'metabox-online-generator' ),
                'type' => 'wysiwyg',
            ),
        ),
    );

    return $meta_boxes;
}
add_filter( 'rwmb_meta_boxes', 'testmeta' );