Modifying Schema Output

Hi first would like to know will the hooks work with the free version?

We are looking to add reviewedBy to NewsArticle schema

Doing something like this not working

function modify_article_schema_output( $schema ) {
    
    // Get the post ID
    $post_id = get_the_ID();

    // Get 'article_reviewed_by' field value
    $reviewer = get_field('article_reviewed_by', $post_id);

    // Check if 'article_reviewed_by' field is not empty
    if ( !empty($reviewer) ) {
        // Get the reviewer's name and ID
        $reviewer_name = $reviewer['display_name'];
        $reviewer_id = $reviewer['ID'];
        
        // Build the URL
        $url = site_url() . "#/schema/person/" . md5( $reviewer_id );

        // Add 'reviewedBy' to the schema
        $schema['reviewedBy'] = array(
            array(
                'name' => $reviewer_name,
                '@id' => $url
            )
        );

        // Add 'lastReviewed' to the schema
        $schema['lastReviewed'] = get_the_modified_date( 'Ymd', $post_id );
    }
    
    return $schema;
}

// Add the filter
add_filter( 'saswp_modify_news_article_schema_output', 'modify_article_schema_output' );