added internal rates (#1591)

src/Entity/RateInterface.php

@@ -9,12 +9,17 @@
 
 namespace App\Entity;
 
+/**
+ * @internal
+ */
 interface RateInterface
 {
     public function getUser(): ?User;
 
     public function getRate(): float;
 
+    public function getInternalRate(): ?float;
+
     public function isFixed(): bool;
 
     public function getScore(): int;