code: def add(request, kind, method, *args):
      
      request.session.setdefault(_key_name(kind), []).append({
          "method": method,
          "args": args
      })
docs: add(request, "mixpanel", "track", "purchase", {order: "1234", amount: "100"})
      add(request, "google", "push", ["_addTrans", "1234", "Gondor", "100"])