You can find the file [here](https://github.com/matheusmosca/walrus/blob/main/rpc/v1/subscribe.go). Take a look at [this StackOverflow post](https://stackoverflow.com/questions/42102496/testing-a-grpc-service) for more info about gRPC testing in Go.
You can find the file here. Take a look at this StackOverflow post for more info about gRPC testing in Go.