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src/FactorGraphs/FactorGraphLayer.php

@@ -24,7 +24,7 @@ abstract class FactorGraphLayer
      */
     private array $inputVariablesGroups = [];
 
-    protected function __construct(private readonly TrueSkillFactorGraph $parentFactorGraph)
+    public function __construct(private readonly TrueSkillFactorGraph $parentFactorGraph)
     {
     }