public Builder mergeFrom(skadistats.clarity.wire.common.proto.Demo.CDemoCustomData other) { if (other == skadistats.clarity.wire.common.proto.Demo.CDemoCustomData.getDefaultInstance()) return this; if (other.hasCallbackIndex()) { setCallbackIndex(other.getCallbackIndex()); } if (other.hasData()) { setData(other.getData()); } this.mergeUnknownFields(other.getUnknownFields()); return this; }