var children =
/*#__PURE__*/
new Map();
var sessionIdIndex = 0;
var registry = {
  bookId: function () {
    return "x:" + sessionIdIndex++;
  },
  register: function (id, actor) {
    children.set(id, actor);
    return id;
  },
  get: function (id) {
    return children.get(id);
  },
  free: function (id) {
    children.delete(id);
  }
};
export { registry };