CS.

src/Composer/ComposerPackage.php

@@ -90,7 +90,7 @@ final class ComposerPackage implements ComposerPackageInterface
 
         $data = $this->getComposerJson();
 
-        return array_key_exists($key, $data) ? $data[$key] : $default;
+        return \array_key_exists($key, $data) ? $data[$key] : $default;
     }
 
     private function getComposerJson(): array

src/Config.php

@@ -73,12 +73,6 @@ final class Config extends PhpCsFixerConfig
         );
     }
 
-    /**
-     * @param float $phpVersion
-     * @param bool  $risky
-     *
-     * @return array
-     */
     private function ruleSets(float $phpVersion, bool $risky): array
     {
         $sets = [