/**
 * Change the expiration text for a level.
 *
 * @see pmpro_getLevelExpiration
 *
 * @param string $expiration_text The expiration text.
 * @param object $level           The Level object.
 *
 * @retrn string Expiration text.
 */
apply_filters( 'pmpro_levels_expiration_text', $expiration_text, $level );