When listing pins, Pin.meta is sent as fmt.Sprintf("%v", obj) where obj is map[string]string, e.g., meta=map[foo:one bar:two] (after URL unescaping). That's a bit awkward to parse on the backend. Is there a more idiomatic way to send a map as a query param?

Gin encodes maps by exploding the keys: "meta[foo]=one&meta[bar]=two".

If I generate the client with another popular Go OpenAPI generator called oapi-codegen, it uses this lib to encode Pin.meta as URL escaped JSON.