syntax = "proto3";
package dummy;

message Empty {
}

message SomeRequest {
  string what_client_sends = 1;
}

message SomeResponse {
  string what_server_sends = 1;
}

message StreamRequest {
  string what_client_sends = 1;
}

message StreamResponse {
  string what_server_sends = 1;
}

service TestService {
  rpc GetSomething (SomeRequest) returns (SomeResponse);
  rpc ClientMessages (stream StreamRequest) returns (Empty);
  rpc ServerMessages (Empty) returns (stream StreamResponse);
}