public void writeTo(com.google.protobuf.CodedOutputStream output)
        throws java.io.IOException {
        if (!getNameBytes().isEmpty()) {
            com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
        }
        if (group_ != com.alipay.sofa.rpc.protobuf.Group.A.getNumber()) {
            output.writeEnum(2, group_);
        }
    }
<code>.com.alipay.sofa.rpc.protobuf.Group group = 2;</code>
example/src/test/java/com/alipay/sofa/rpc/protobuf/EchoRequest.java