syntax = "proto2";

enum MessageType {
     UNKNOWN = 0;
     GREETING = 1;
}

message Envelope {
	MessageType type = 1 [default = GREETING];
	string name = 2 [default = test];
	bool flag = 3 [default = true];
	float weight = 4 [default = 1.5];
	int32 id = 5 [default = 1];
}