This issue was created to be a good first issue. The Goal is to study the inclusion of some require-dev dependencies to analyse and detect issues in source for us.

Some proposals:

• phpstan
• phploc
• phpmd

After discussion, we may want you to perform a pull request that includes the tool in the project. You may also have to update the travis.yml.

Hi, i am currently using your services to implement an instant search to improve system search. And everything looks great till now. But currently i m getting an issues with a model import data, since am using aggregator to use multiples models in one indice.

The issues is like so:

1. When i add some models, lets say, Contrato, Pagamento and User to the models array property of the Aggregat