tools/checkstyle_suppressions.xml

<?xml version="1.0"?>

<!DOCTYPE suppressions PUBLIC
  "-//Puppy Crawl//DTD Suppressions 1.1//EN"
  "http://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
<suppressions>
  <suppress files="[/\\].apt_generated[/\\]" checks=".*"/>
</suppressions>