nestJs=true incorrect type generation for proto fields with numbers

[hersentino]

With nestjs option, if .proto like this :

message TestUnaryRequest {
    string message_test_30_100 = 1;
    string message_test = 2;
}

message_test_30_100 will become messageTest30100 inside generated proto:

interface TestUnaryRequest {
  messageTest30100: string;
  messageTest: string;
}

However, it should be messageTest_30_100 in order to work correctly with the NestJS gRPC server. The generated types are wrong.

I have created a reproducible example in this repo : https://github.com/hersentino/ts-proto-issue