- Defined sets() as chainable

src/Method/FormContext.php

@@ -147,11 +147,13 @@ class FormContext implements FormContextInterface
         return $this->formContextValues[$key] = $value;
     }
 
-    public function sets(array $values) : void
+    public function sets(array $values) : static
     {
         foreach($values as $key =>$value) {
             $this->set($key, $value);
         }
+
+        return $this;
     }
 
 
@@ -164,7 +166,7 @@ class FormContext implements FormContextInterface
     {
         return array_key_exists($key, $this->formContextValues);
     }
-    
+
     public function pushMessage(FormMessage $message) : void
     {
         $this->formContextMessages[] = $message;