Using packages from within other packages

help
1

I’m writing my own package and I need to rely on dburles:mongo-collection-instances. I know that the collection instances package will modify the Mongo.Collection object, but I can’t see to use Mongo.Collection.getAll() from within my custom package.

var collections = Mongo.Collection.getAll(); // Doesn't work
console.log('collections', collections);

My package.js:

Package.onUse(function(api) {
  api.versionsFrom('1.0.3.1');
  api.use('jquery');
  api.use('mongo');
  api.use('session');
  api.use('matb33:collection-hooks');
  api.use('dburles:mongo-collection-instances');
  api.use('accounts-base', ['client', 'server'], {weak: true});
...
});