bp_email_get_unsubscribe_type_schema()

function bp_email_get_unsubscribe_type_schema() {
	$emails = bp_email_get_type_schema( 'all' );

	/**
	 * Filters the return of `bp_email_get_type_schema( 'all' )` for use with
	 * our unsubscribe functionality.
	 *
	 * @since BuddyPress 2.8.0
	 *
	 * @param array $emails The array of email types and their schema.
	 */
	return (array) apply_filters( 'bp_email_get_unsubscribe_type_schema', $emails );
}