wp-includes/SimplePie/src/Content/Type/Sniffer.php:75Create an instance of the class with the input file
$fileSimplePie\Content\Type\Sniffer public function __construct($file) { $this->file = $file; }One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$file retyped from SimplePie\Content\Type\Sniffer to SimplePie\File|SimplePie\HTTP\Response.verified against sourcesrc/wp-includes/SimplePie/src/Content/Type/Sniffer.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.