* 'writeHeaders' => [ 'content-type' => 'application/octet-stream' ],
* 'deleteHeaders' => [],
* 'writeMethod' => 'POST',
- * 'serialization_type' => 'JSON',
* ],
+ * 'serialization_type' => 'JSON',
* 'extendedErrorBodyFields' => [ 'type', 'title', 'detail', 'instance' ]
* );
* $wgSessionCacheType = 'sessions';