compose_to_store.js

import Vue from 'nativescript-vue';
import Vuex, {Module} from 'vuex'

import counter from './modules/Counter2';
import hgapi from './modules/HGAPIModule'

Vue.use(Vuex);

const store = new Vuex.Store({
  state: {},
  modules: {
    counter,
    hgapi
  }
});