Merge pull request #109 from HergenD/isset-support-for-value-and-label

Add isset() support for label and value

src/Enum.php

@@ -180,6 +180,16 @@ public function __get(string $name)
         throw UnknownEnumProperty::new(static::class, $name);
     }
 
+    /**
+     * @param string $name
+     *
+     * @return bool
+     */
+    public function __isset(string $name): bool
+    {
+        return $name === 'label' || $name === 'value';
+    }
+
     /**
      * @param string $name
      * @param array $arguments