implement blocking users

it doesn't work yet for notifications! but i think i got it in most other places

1 files changed, 1 insertions, 1 deletions

diff --git a/Digitigrade/Notification/Notifyable.php b/Digitigrade/Notification/Notifyable.php
index 510437e..7a7826f 100644
--- a/Digitigrade/Notification/Notifyable.php
+++ b/Digitigrade/Notification/Notifyable.php
@@ -3,7 +3,7 @@ namespace Digitigrade\Notification;
 
 interface Notifyable {
     public function toJsonReference(): mixed;
-    public static function fromJsonReference(mixed $reference): self;
+    public static function fromJsonReference(mixed $reference): ?self;
     public function getNotificationTitle(): string;
     public function getNotificationTitleLink(): ?string;
     public function getNotificationBody(): ?string;