diff --git a/src/SchemalessAttributesTrait.php b/src/SchemalessAttributesTrait.php
index 49f3fd0..53d4a93 100644
--- a/src/SchemalessAttributesTrait.php
+++ b/src/SchemalessAttributesTrait.php
@@ -12,7 +12,7 @@
  */
 trait SchemalessAttributesTrait
 {
-    public function initializeSchemalessAttributesTrait()
+    public function initializeSchemalessAttributesTrait(): void
     {
         foreach ($this->getSchemalessAttributes() as $attribute) {
             $this->casts[$attribute] = SchemalessAttributesCast::class;
@@ -21,9 +21,7 @@ public function initializeSchemalessAttributesTrait()
 
     public function getSchemalessAttributes(): array
     {
-        return isset($this->schemalessAttributes)
-            ? $this->schemalessAttributes
-            : [];
+        return $this->schemalessAttributes ?? [];
     }
 
     /**