- * @param sig The signature.
- * @param is_use true, if the argument is a use, else it is considered a
- * def.
- * @param num The index of the argument.
- * @param name The name of the argument.
- * @param mc The mode class of the argument.
- * @param is_variadic true, if the argument is variadic.
+ *
+ * @param sig The signature.
+ * @param is_use non-zero, if the argument is a use, else it is
+ * considered a def.
+ * @param num The index of the argument.
+ * @param name The name of the argument.
+ * @param mc The mode class of the argument.
+ * @param is_variadic non-zero, if the argument is variadic.