+/**
+ * check message for maildir flag
+ *
+ * @param [in,out] message message to check
+ * @param [in] flag flag to check for
+ * @param [out] is_set pointer to boolean
+ *
+ * @retval #NOTMUCH_STATUS_SUCCESS
+ * @retval #NOTMUCH_STATUS_NULL_POINTER is_set is NULL
+ * @retval #NOTMUCH_STATUS_XAPIAN_EXCEPTION Accessing the database
+ * triggered an exception.
+ */
+notmuch_status_t
+notmuch_message_has_maildir_flag_st (notmuch_message_t *message,
+ char flag,
+ notmuch_bool_t *is_set);
+