public Builder mergeFrom(io.pravega.controller.stream.api.grpc.v1.Controller.TxnRequest other) { if (other == io.pravega.controller.stream.api.grpc.v1.Controller.TxnRequest.getDefaultInstance()) return this; if (other.hasStreamInfo()) { mergeStreamInfo(other.getStreamInfo()); } if (other.hasTxnId()) { mergeTxnId(other.getTxnId()); } this.mergeUnknownFields(other.unknownFields); onChanged(); return this; }