You appear to be a bot. Output may be restricted Description Usage AppendStream::getMetadata( $key ); Parameters $key ( mixed ) optional – Returns void Source File name: wordpress-seo/vendor_prefixed/guzzlehttp/psr7/src/AppendStream.php Lines: 1 to 5 of 5 public function getMetadata($key = null) { return $key ? null : []; } View on GitHub View on Trac