Hello, thanks for your product, it's really cool. Here's a question related to `graphcool-lib`: Using the following resolver:

import { fromEvent } from "graphcool-lib";

export default async event => {
  const lib = fromEvent(event);
  const client = lib.api("simple/v1");

  const res = client.request(
    `mutation {
  deleteUser(id: "cjf9dqjab01da0161jl2q08s1"){
    id
    name
  }
}`
  );

  return {
    data: res
  };
};

does not yield any data in

res

. I can see in the logs that

res = {}

Is that expected?