Function send

packages/xstate-store/src/atom.ts:316–326

(event)

    get: atom.get.bind(atom),
    subscribe: atom.subscribe.bind(atom),
    send(event) {
      const prevSub = activeSub;
      activeSub = undefined;
      let nextState: TState;
      try {
        nextState = reducer(atom.get(), event);
      } finally {
        activeSub = prevSub;
      }
      atom.set(nextState);
    }
  };
}