go-zero/tools/goctl/rpc/generator/test_go_option.proto

// test proto
syntax = "proto3";

package stream;

option go_package="go";

message StreamReq {
  string name = 1;
}

message StreamResp {
  string greet = 1;
}

service StreamGreeter {
  rpc greet (StreamReq) returns (StreamResp);
}