Example response helper function

helper.php

<?php

/**
 * Create a WP_REST_Response that uses ACM response data formatting.
 *
 * @param bool  $success Whether the response was successful or not.
 * @param array $data    The data for the response.
 * @param int   $status  Optional http status code. Default 200.
 * @param array $headers Optional http headers. Default empty array.
 *
 * @return \WP_REST_Response A WP_REST_Response object.
 */
function create_rest_response( bool $success, array $data, int $status = 200, array $headers = [] ): \WP_REST_Response {
    $data = format_response_data( $success, $data );

    return new \WP_REST_Response( $data, $status, $headers );
}