Fix template

Author: loic425

src/Bar.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Psr\Container;
+
+class Bar
+{
+    public function test(): int
+    {
+        return 1;
+    }
+}

src/ContainerInterface.php

@@ -12,7 +12,7 @@ interface ContainerInterface
     /**
      * Finds an entry of the container by its identifier and returns it.
      *
-     * @template T of mixed
+     * @template T of object
      *
      * @param class-string<T>|string $id Identifier of the entry to look for.
      *

src/Foo.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Psr\Container;
+
+class Foo
+{
+    public function test(ContainerInterface $context): void
+    {
+        $context->get(Bar::class)->test()
+    }
+}