Fix Return Type Covariance

Author: lloc

.phpstan.neon.dist

@@ -1,5 +1,5 @@
 parameters:
-    level: 6
+    level: 8
     paths:
         - MultisiteLanguageSwitcher.php
         - includes

includes/MslsMain.php

@@ -38,7 +38,7 @@ final public function __construct( MslsOptions $options, MslsBlogCollection $col
 		$this->collection = $collection;
 	}
 
-	public static function create(): object {
+	public static function create(): MslsMain {
 		return new static( msls_options(), msls_blog_collection() );
 	}
 

includes/MslsOutput.php

@@ -23,6 +23,9 @@ class MslsOutput extends MslsMain {
 
 	const MSLS_GET_TAGS_HOOK = 'msls_output_get_tags';
 
+	public static function create(): MslsOutput {
+		return new static( msls_options(), msls_blog_collection() );
+	}
 
 	public static function init(): object {
 		_deprecated_function( __METHOD__, '2.9.2', 'MslsOutput::create' );