Is it like this?

client, err := authzed.NewClient(
        "localhost:50051",
        grpc.WithTransportCredentials(insecure.NewCredentials()),
        grpcutil.WithBearerToken("somerandomkeyhere"),
    )

Got error when running the client program: 2023/08/02 20:41:56 unable to initialize client: grpc: the credentials require transport level security (use grpc.WithTransportCredentials() to set)