Suggested style changes

Author: peterfox

src/Contracts/CheckNotifiableSubscriptionStatus.php

@@ -4,5 +4,5 @@
 
 interface CheckNotifiableSubscriptionStatus
 {
-    public function checkMailSubscriptionStatus() : bool;
+    public function checkMailSubscriptionStatus(): bool;
 }

src/Contracts/CheckSubscriptionStatusBeforeSendingNotifications.php

@@ -6,5 +6,5 @@
 
 interface CheckSubscriptionStatusBeforeSendingNotifications
 {
-    public function mailSubscriptionStatus(Notification $notification) : bool;
+    public function mailSubscriptionStatus(Notification $notification): bool;
 }

src/MailSubscriber.php

@@ -25,7 +25,7 @@ public function unsubscribeLink(?string $mailingList = ''): string
      * @param Notification $notification
      * @return bool
      */
-    public function mailSubscriptionStatus(Notification $notification) : bool
+    public function mailSubscriptionStatus(Notification $notification): bool
     {
         return Subscriber::checkSubscriptionStatus(
             $this,