message SubMessage {
    optional string stringvalue = 1;
    repeated int32 int32value = 2;
    repeated fixed32 fixed32value = 3;
    repeated fixed64 fixed64value = 4;
}

message TestMessage {
    optional string stringvalue = 1;
    repeated int32 int32value = 2;
    repeated fixed32 fixed32value = 3;
    repeated fixed64 fixed64value = 4;
    optional SubMessage submsg = 5;
}