diff --git a/core/modules/block/src/Entity/Block.php b/core/modules/block/src/Entity/Block.php
index 3446097..233f164 100644
--- a/core/modules/block/src/Entity/Block.php
+++ b/core/modules/block/src/Entity/Block.php
@@ -85,6 +85,13 @@ class Block extends ConfigEntityBase implements BlockInterface, EntityWithPlugin
   protected $pluginBag;
 
   /**
+   * The theme that includes the block plugin for this entity.
+   *
+   * @var string
+   */
+  protected $theme;
+
+  /**
    * {@inheritdoc}
    */
   public function getPlugin() {
@@ -105,7 +112,6 @@ public function getTheme() {
     return $this->theme;
   }
 
-
   /**
    * Encapsulates the creation of the block's PluginBag.
    *
@@ -216,7 +222,7 @@ public function getRegion() {
    * {@inheritdoc}
    */
   public function setRegion($region) {
-    $this->weight = (string) $region;
+    $this->weight = $region;
     return $this;
   }
 
@@ -231,7 +237,7 @@ public function getWeight() {
    * {@inheritdoc}
    */
   public function setWeight($weight) {
-    $this->weight = (int) $weight;
+    $this->weight = $weight;
     return $this;
   }