Add missing return type. Remove waistful new lines

Author: wesleymartincc

tests/Feature/ConversationTest.php

@@ -20,7 +20,6 @@
 final class ConversationTest extends TestCase
 {
     private array $userIds;
-
     private array $conversations;
 
     public function setUp(): void

tests/Feature/MessageTest.php

@@ -16,9 +16,7 @@
 final class MessageTest extends TestCase
 {
     private string $conversationId;
-
     private string $senderId;
-
     private array $messages;
 
     protected function setUp(): void

tests/Feature/UserTest.php

@@ -14,9 +14,7 @@
 final class UserTest extends TestCase
 {
     private string $userId;
-
     private array $userDetails;
-
     private array $userConversations;
 
     protected function setUp(): void

tests/TestCase.php

@@ -12,7 +12,6 @@
 abstract class TestCase extends BaseTestCase
 {
     protected array $defaultMockResponseHeaders;
-
     protected array $defaultFilters;
 
     protected function setUp(): void

tests/Unit/ConversationTest.php

@@ -120,7 +120,7 @@ public function testCreateManyFromArray(): void
         }
     }
 
-    public function testUnreadBy()
+    public function testUnreadBy(): void
     {
         $conversation1 = new Conversation($this->conversations[0]);
         $conversation2 = new Conversation($this->conversations[1]);

tests/Unit/MessageTest.php

@@ -11,11 +11,8 @@
 final class MessageTest extends TestCase
 {
     private string $senderId;
-
     private array $messages;
-
     private Message $message1;
-
     private Message $message2;
 
     protected function setUp(): void