How to set multiple keys for protobuf Maps

[Michael Nguyen]

I am trying to create a dictionary as part of my message and I would like to have multiple keys for the dictionary. Here's what my message currently looks like:

message User {

string name = 1;

 
string manager = 2;

string id = 3;

map<string, string> metadata = 4;

}

In the metadata field I would like to save the following data:

metadata_info = {

"sync_direction": "OUTBOUND",

"status": "UNCONFIRMED",

}

What is the best way to save my metadata_info to the metadata field in my User message? Should I just use setattr(message, "metadata", metadata_info) to accomplish this? I am currently using Proto3 and Python3 at the moment.