+ /**
+ * Sets a required feature bit. Errors if `bit` is outside the feature range as defined
+ * by [BOLT 9].
+ *
+ * Note: Required bits are even. If an odd bit is given, then the corresponding even bit will
+ * be set instead (i.e., `bit - 1`).
+ *
+ * [BOLT 9]: https://github.com/lightning/bolts/blob/master/09-features.md
+ */
+ public Result_NoneNoneZ set_required_feature_bit(long bit) {
+ long ret = bindings.OfferFeatures_set_required_feature_bit(this.ptr, bit);
+ GC.KeepAlive(this);
+ GC.KeepAlive(bit);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ Result_NoneNoneZ ret_hu_conv = Result_NoneNoneZ.constr_from_ptr(ret);
+ return ret_hu_conv;
+ }
+
+ /**
+ * Sets an optional feature bit. Errors if `bit` is outside the feature range as defined
+ * by [BOLT 9].
+ *
+ * Note: Optional bits are odd. If an even bit is given, then the corresponding odd bit will be
+ * set instead (i.e., `bit + 1`).
+ *
+ * [BOLT 9]: https://github.com/lightning/bolts/blob/master/09-features.md
+ */
+ public Result_NoneNoneZ set_optional_feature_bit(long bit) {
+ long ret = bindings.OfferFeatures_set_optional_feature_bit(this.ptr, bit);
+ GC.KeepAlive(this);
+ GC.KeepAlive(bit);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ Result_NoneNoneZ ret_hu_conv = Result_NoneNoneZ.constr_from_ptr(ret);
+ return ret_hu_conv;
+ }
+