diff --git a/src/Objects/Exceptions/UnsupportedPhpVersionException.php b/src/Objects/Exceptions/UnsupportedPhpVersionException.php
index bcc8938..af319ba 100644
--- a/src/Objects/Exceptions/UnsupportedPhpVersionException.php
+++ b/src/Objects/Exceptions/UnsupportedPhpVersionException.php
@@ -8,5 +8,4 @@
 
 class UnsupportedPhpVersionException extends RuntimeException
 {
-
 }
diff --git a/src/Objects/Schema/Generation/Annotations/AvroItems.php b/src/Objects/Schema/Generation/Annotations/AvroItems.php
index 5c158bf..8447fa8 100644
--- a/src/Objects/Schema/Generation/Annotations/AvroItems.php
+++ b/src/Objects/Schema/Generation/Annotations/AvroItems.php
@@ -13,11 +13,14 @@
  */
 final class AvroItems implements TypeOnlyAttribute
 {
+    /**
+     * @var mixed
+     */
     public $value;
 
     public function value(): array
     {
-        $value = is_array($this->value) ? $this->value : [$this->value];
+        $value = \is_array($this->value) ? $this->value : [$this->value];
 
         return array_map(function ($value) {
             if ($value instanceof AvroType) {
diff --git a/src/Objects/Schema/Generation/Annotations/AvroValues.php b/src/Objects/Schema/Generation/Annotations/AvroValues.php
index 713f756..05dde2a 100644
--- a/src/Objects/Schema/Generation/Annotations/AvroValues.php
+++ b/src/Objects/Schema/Generation/Annotations/AvroValues.php
@@ -13,11 +13,14 @@
  */
 final class AvroValues implements TypeOnlyAttribute
 {
+    /**
+     * @var mixed
+     */
     public $value;
 
     public function value(): array
     {
-        $value = is_array($this->value) ? $this->value : [$this->value];
+        $value = \is_array($this->value) ? $this->value : [$this->value];
 
         return array_map(function ($value) {
             if ($value instanceof AvroType) {
diff --git a/test/Objects/Schema/Generation/SchemaGeneratorTest.php b/test/Objects/Schema/Generation/SchemaGeneratorTest.php
index d91bd11..2930de9 100644
--- a/test/Objects/Schema/Generation/SchemaGeneratorTest.php
+++ b/test/Objects/Schema/Generation/SchemaGeneratorTest.php
@@ -22,20 +22,6 @@ protected function setUp(): void
         );
     }
 
-    abstract protected function makeSchemaAttributeReader(): SchemaAttributeReader;
-
-    abstract protected function getEmptyRecordClass(): string;
-
-    abstract protected function getPrimitiveTypesClass(): string;
-
-    abstract protected function getRecordWithComplexTypesClass(): string;
-
-    abstract protected function getRecordWithRecordTypeClass(): string;
-
-    abstract protected function getArraysWithComplexTypeClass(): string;
-
-    abstract protected function getMapsWithComplexTypeClass(): string;
-
     /**
      * @test
      */
@@ -235,4 +221,18 @@ public function it_should_generate_a_record_schema_with_maps_containing_complex_
 
         $this->assertEquals($expected, $schema);
     }
+
+    abstract protected function makeSchemaAttributeReader(): SchemaAttributeReader;
+
+    abstract protected function getEmptyRecordClass(): string;
+
+    abstract protected function getPrimitiveTypesClass(): string;
+
+    abstract protected function getRecordWithComplexTypesClass(): string;
+
+    abstract protected function getRecordWithRecordTypeClass(): string;
+
+    abstract protected function getArraysWithComplexTypeClass(): string;
+
+    abstract protected function getMapsWithComplexTypeClass(): string;
 }