Better PHP Standards

Problem/Motivation

I see that the module follows very old PHP standard practices, for example it doesn't follow the function return type hinting, among other features that need to be added

More information about Drupal's coding standards

Steps to reproduce

Look into the module's source code, it is using outdated PHP practices.

Proposed resolution

Upgrade the module follow recent standard practices for writing more robust PHP code.

Remaining tasks

N/A

User interface changes

N/A

API changes

N/A

Data model changes

N/A