private static void ensureGrpcSerializationFormat(SerializationFormat serializationFormat) {
        checkArgument(GrpcSerializationFormats.isGrpc(serializationFormat),
                      "serializationFormat: %s (expected: one of %s)",
                      serializationFormat, GrpcSerializationFormats.values());
    }
Sets the gRPC {@link SerializationFormat}. If not set, the {@link Scheme#serializationFormat()}
specified when creating this builder will be used by default.

@see GrpcSerializationFormats
grpc/src/main/java/com/linecorp/armeria/client/grpc/GrpcClientBuilder.java