protobuf 字段的多行注释

Question

如何在.proto字段中为消息字段写多行注释？ 官方文档没有说明。 例如我有消息：

message LocationResponse {
  City city = 1; // city info, will be filled only when `with_city` option is requested
  Country country = 2; // country info, will be filled only when `with_country` option is requested
  repeated Subdivision subdivisions = 3; // subdivisions info, will be filled only when `with_subdivisions` option is requested
}

Answer 1

message LocationResponse {
  // city info, will be filled only when `with_city` 
  // option is requested
  City city = 1; 
  // country info, will be filled only when `with_country` 
  // option is requested
  Country country = 2; 
  // subdivisions info, will be filled only when `with_subdivisions` 
  // option is requested
  repeated Subdivision subdivisions = 3; 
}