Use typed properties

src/DataFixtures/DataStructureFixtures.php

@@ -58,7 +58,7 @@ use InvalidArgumentException;
 
 class DataStructureFixtures extends Fixture
 {
-    protected $em;
+    protected EntityManagerInterface $em;
 
     public function __construct(EntityManagerInterface $entityManager)
     {

src/DataFixtures/LabelProfileFixtures.php

@@ -31,7 +31,7 @@ use Doctrine\Persistence\ObjectManager;
 
 class LabelProfileFixtures extends Fixture
 {
-    protected $em;
+    protected EntityManagerInterface $em;
 
     public function __construct(EntityManagerInterface $entityManager)
     {

src/DataFixtures/PartFixtures.php

@@ -42,7 +42,7 @@ use Doctrine\Persistence\ObjectManager;
 
 class PartFixtures extends Fixture
 {
-    protected $em;
+    protected EntityManagerInterface $em;
 
     public function __construct(EntityManagerInterface $entityManager)
     {

src/DataFixtures/UserFixtures.php

@@ -50,8 +50,8 @@ use Symfony\Component\PasswordHasher\Hasher\UserPasswordHasherInterface;
 
 class UserFixtures extends Fixture
 {
-    protected $encoder;
-    protected $em;
+    protected UserPasswordHasherInterface $encoder;
+    protected EntityManagerInterface $em;
 
     public function __construct(UserPasswordHasherInterface $encoder, EntityManagerInterface $entityManager)
     {