Can application object be accessed in mongoose plugins?

[wangyige0701]

I insert some configs in app object, and I hope to get it in mongoose plugins, can this feature be added.
And I think it can be handled this way.

module.exports = app => {
  const { client, clients, url, options, defaultDB, customPromise, loadModel, plugins, aPlugins } = app.config.mongoose;
  ...
  if (Array.isArray(aPlugins)) {
    aPlugins.forEach(plugin => {
      mongoose.plugin.apply(mongoose, insertApp(app, plugin));
    });
  }
  ...
};
function createOneClient(config, app) {
  const { url, options, plugins, aPlugins } = config;
  ...
  [].concat(plugins || [], (aPlugins || []).map(plugin => insertApp(app, plugin)), globalPlugins).forEach(plugin => {
    mongoose.plugin.apply(mongoose, Array.isArray(plugin) ? plugin : [ plugin ]);
  });
  ...
}
...
function insertApp(app, plugin) {
  if (Array.isArray(plugin)) {
    plugin[0] = plugin[0](app);
    return plugin;
  }
  return [ plugin(app) ];
}

config like this

exports.mongoose = {
  url: process.env.MONGODB_URL_3,
  options: {},
  aPlugins: [ lastModifiedPlugin, [ lastModifiedPlugin, { field: 'updatedAt' }]],
};