diff --git a/Models/Event.php b/Models/Event.php
index 9bff3e2..03e2982 100644
--- a/Models/Event.php
+++ b/Models/Event.php
@@ -200,7 +200,7 @@ class Event
 
     public function countTasks() : int
     {
-        return count($this->tasks);
+        return \count($this->tasks);
     }
 
     public function getId() : int
diff --git a/Models/EventMapper.php b/Models/EventMapper.php
index f47840d..d64a888 100644
--- a/Models/EventMapper.php
+++ b/Models/EventMapper.php
@@ -57,6 +57,11 @@ final class EventMapper extends DataMapperAbstract
      *
      * @var array<string, array<string, null|string>>
      * @since 1.0.0
+     */    /**
+     * Has many relation.
+     *
+     * @var array<string, array<string, string>>
+     * @since 1.0.0
      */
     protected static $hasMany = [
         'tasks' => [