Add function to get direct access to blueprint schema

system/src/Grav/Common/Data/Blueprint.php

@@ -110,6 +110,18 @@ class Blueprint extends BlueprintForm
         return $this->blueprintSchema->filter($data);
     }
 
+    /**
+     * Return blueprint data schema.
+     *
+     * @return BlueprintSchema
+     */
+    public function schema()
+    {
+        $this->initInternals();
+
+        return $this->blueprintSchema;
+    }
+
     /**
      * Initialize validator.
      */