thephpleague/fractal — pull request #118 by MetalMatze (2014-10-26 19:13:14+00:00)
Title: Add an abstract transform() function to TransformerAbstract.php

It bothered me while creating new transformers that PHPStorm didn't notify me, that I need to implement transform($data).

I removed type-hinting an array for some implementations, since it could transform every datastructure, right?