Add methods

src/Potter/Nameable/NameableInterface.php

@@ -8,5 +8,8 @@ use \Potter\Aware\AwareInterface;
 
 interface NameableInterface extends AwareInterface
 {
-
+    public function getName(): string;
+    public function hasName(): bool;
+    public function withName(string $name): self;
+    public function withoutName(): self;
 }