Add with() Method

src/Potter/Aware/AbstractAware.php

@@ -10,4 +10,5 @@ abstract class AbstractAware implements AwareInterface
     abstract public function has(string $key): bool;
     abstract protected function set(string $key, mixed $value): mixed;
     abstract protected function unset(string $key): void;
+    abstract public function with(string $key, mixed $value): AwareInterface;
 }

src/Potter/Aware/AwareInterface.php

@@ -8,4 +8,5 @@ interface AwareInterface
 {
     public function get(string $key): mixed;
     public function has(string $key): bool;
+    public function with(string $key, mixed $value): self;
 }

src/Potter/Aware/AwareTrait.php

@@ -10,6 +10,8 @@ trait AwareTrait
 {
     private array $aware = [];
     
+    abstract public function clone(): CloneableInterface;
+    
     final public function get(string $key): mixed
     {
         return $this->aware[$key];
@@ -30,5 +32,9 @@ trait AwareTrait
         unset($this->aware[$key]);
     }
     
-    abstract public function clone(): CloneableInterface;
+    final public function with(string $key, mixed $value): AwareInterface
+    {
+        ($clone = $this->clone())->set($key, $value);
+        return $clone;
+    }
 }