How to extend Line Formatter to separate part of the context?

Question

Yii

In Monologue, you can choose the format for the type of logging. But by default there are few options. If a lot of data is passed to the context section, then all of it will be displayed in one poorly readable line. How can I change the LineFormatter class so that each comma changes to e.g. comma+newline? How to write such a replacement in php is clear, it is not very clear how to apply it to this class:
https://github.com/Seldaek/monolog/blob/master/src...