wp-includes/class-wp-image-editor-gd.php:658Either calls editor's save function or handles file as a stream.
$filenamestring$callbackcallable$argumentsarraybool protected function make_image( $filename, $callback, $arguments ) { if ( wp_is_stream( $filename ) ) { $arguments[1] = null; } return parent::make_image( $filename, $callback, $arguments ); }Introduced in 3.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-image-editor-gd.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.