Patch to add store_id support to CMS API Block and Page interface

add-store-id-to-cms-api.patch

diff --git Api/Data/BlockInterface.php Api/Data/BlockInterface.php
index 68110b5..353dae8 100644
--- Api/Data/BlockInterface.php
+++ Api/Data/BlockInterface.php
@@ -22,6 +22,7 @@ interface BlockInterface
     const CREATION_TIME = 'creation_time';
     const UPDATE_TIME   = 'update_time';
     const IS_ACTIVE     = 'is_active';
+    const STORE_ID      = 'store_id';
     /**#@-*/

     /**
@@ -74,6 +75,13 @@ interface BlockInterface
     public function isActive();

     /**
+     * Get stores
+     *
+     * @return int[]|null
+     */
+    public function getStoreId();
+
+    /**
      * Set ID
      *
      * @param int $id
@@ -128,4 +136,12 @@ interface BlockInterface
      * @return BlockInterface
      */
     public function setIsActive($isActive);
+
+    /**
+     * Set stores
+     *
+     * @param int[]|null $stores
+     * @return BlockInterface
+     */
+    public function setStoreId(array $stores = null);
 }
diff --git Api/Data/PageInterface.php Api/Data/PageInterface.php
index 032f491..b3786f1 100644
--- Api/Data/PageInterface.php
+++ Api/Data/PageInterface.php
@@ -34,6 +34,7 @@ interface PageInterface
     const CUSTOM_THEME_FROM        = 'custom_theme_from';
     const CUSTOM_THEME_TO          = 'custom_theme_to';
     const IS_ACTIVE                = 'is_active';
+    const STORE_ID                 = 'store_id';
     /**#@-*/

     /**
@@ -171,6 +172,13 @@ interface PageInterface
     public function isActive();

     /**
+     * Get stores
+     *
+     * @return int[]|null
+     */
+    public function getStoreId();
+
+    /**
      * Set ID
      *
      * @param int $id
@@ -322,4 +330,12 @@ interface PageInterface
      * @return \Magento\Cms\Api\Data\PageInterface
      */
     public function setIsActive($isActive);
+
+    /**
+     * Set stores
+     *
+     * @param int[]|null $stores
+     * @return \Magento\Cms\Api\Data\PageInterface
+     */
+    public function setStoreId(array $stores = null);
 }
diff --git Model/Block.php Model/Block.php
index e65675c..6ec0a66 100644
--- Model/Block.php
+++ Model/Block.php
@@ -11,9 +11,6 @@ use Magento\Framework\Model\AbstractModel;

 /**
  * CMS block model
- *
- * @method Block setStoreId(array $storeId)
- * @method array getStoreId()
  */
 class Block extends AbstractModel implements BlockInterface, IdentityInterface
 {
@@ -150,6 +147,16 @@ class Block extends AbstractModel implements BlockInterface, IdentityInterface
     }

     /**
+     * Get stores
+     *
+     * @return int[]|null
+     */
+    public function getStoreId()
+    {
+        return $this->getData(self::STORE_ID);
+    }
+
+    /**
      * Set ID
      *
      * @param int $id
@@ -227,6 +234,17 @@ class Block extends AbstractModel implements BlockInterface, IdentityInterface
     }

     /**
+     * Set stores
+     *
+     * @param int[]|null $stores
+     * @return BlockInterface
+     */
+    public function setStoreId(array $stores = null)
+    {
+        return $this->setData(self::STORE_ID, $stores);
+    }
+
+    /**
      * Receive page store ids
      *
      * @return int[]
diff --git Model/Page.php Model/Page.php
index d950f48..c040033 100644
--- Model/Page.php
+++ Model/Page.php
@@ -16,8 +16,6 @@ use Magento\Framework\Model\AbstractModel;
  * Cms Page Model
  *
  * @api
- * @method Page setStoreId(array $storeId)
- * @method array getStoreId()
  * @SuppressWarnings(PHPMD.ExcessivePublicCount)
  * @since 100.0.2
  */
@@ -328,6 +326,16 @@ class Page extends AbstractModel implements PageInterface, IdentityInterface
     }

     /**
+     * Get stores
+     *
+     * @return int[]|null
+     */
+    public function getStoreId()
+    {
+        return $this->getData(self::STORE_ID);
+    }
+
+    /**
      * Set ID
      *
      * @param int $id
@@ -538,6 +546,17 @@ class Page extends AbstractModel implements PageInterface, IdentityInterface
     }

     /**
+     * Set stores
+     *
+     * @param int[]|null $stores
+     * @return \Magento\Cms\Api\Data\PageInterface
+     */
+    public function setStoreId(array $stores = null)
+    {
+        return $this->setData(self::STORE_ID, $stores);
+    }
+
+    /**
      * {@inheritdoc}
      * @since 101.0.0
      */