syntax = "proto3";

package hello;
option go_package="122.51.31.227/go-course/go18/skills/rpc/protobuf/hello_service";

// The HelloService service definition.
service HelloService {
    // rpc 声明接口
    rpc Hello (Request) returns (Response);

    rpc Channel (stream Request) returns (stream Response) {}
}

message Request {
    string value = 1;
}

message Response {
    string value = 1;
}