Re: Revamping googleapis bindings; overloading `[] ?

I now have an API that works roughly like this:

#define TOKENTIME	3600
#define PROJECT		"mylittleproject"
#define ZONE		"eu-west1-c"

string jwt_secret = Stdio.File("googleserviceaccount.json", "r").read();
//
// This hot-fetches the Google Compute API from the discovery file
// provided by Google:
//
Web.Api.Google.Base api = Web.Api.Google.discover("compute", "v1");

void authenticated() {
  if (!api->auth->is_authenticated()
   || api->auth->expires->unix_time() - time(1) < TOKENTIME / 2)
    api->auth->get_token_from_jwt(jwt_secret);
}

int main(int argc, array(string) argv) {
  api->auth->set_scope(api->valid_scopes[1]);
  authenticated();
  // Lists all compute engine instances in this project/zone
  write("%O\n", api->resrc->instances->list(
   ([
    "project":PROJECT,
    "zone":ZONE
   ])
  ));
  return 0;
}

Suggestions?  Complaints?  Wishes?
-- 
Stephen.