missing Less_FileInfo class

[playmono]

Hi,

Despite this project seems abandoned I have a doubt maybe someone can answer me.

I have seen in many classes that a @param called Less_FileInfo is hinted.

less.php/lib/Less/Output.php

Line 22 in 42925c5

* @param Less_FileInfo $fileInfo The file information

(There are more examples)

So, anyone knows what class is this? I can't find the class in the project so I think this is a file resource, a string... ?

Thank you.