function serializeListValue(value) {
  const hash = {};
  push(value);
  return Object.keys(hash).join(" ");
  function push(item) {
    if (item && typeof item.forEach === "function")
      item.forEach(push);
    else if (item === Object(item))
      Object.keys(item).forEach((name) => {
        if (item[name])
          push(name);
      });
    else {
      item = item === false || item == null ? "" : String(item).trim();
      if (item) {
        item.split(/\s+/).forEach((name) => {
          hash[name] = true;
        });
      }
    }
  }
}
function isPromise(value) {
  return !!value && typeof value === "object" && typeof value.then === "function";
}
async function* streamAsyncIterator(stream) {
  const reader = stream.getReader();
  try {
    while (true) {
      const { done, value } = await reader.read();
      if (done)
        return;
      yield value;
    }
  } finally {
    reader.releaseLock();
  }
}
export {
  isPromise,
  serializeListValue,
  streamAsyncIterator
};