gistfile1.diff

diff --git a/core/lib/Drupal/Core/Plugin/Context/Context.php b/core/lib/Drupal/Core/Plugin/Context/Context.php
index 2d79d6f..36314a3 100644
--- a/core/lib/Drupal/Core/Plugin/Context/Context.php
+++ b/core/lib/Drupal/Core/Plugin/Context/Context.php
@@ -51,6 +51,13 @@ public function setContextValue($value) {
     parent::setContextValue($value);
   }
 
+    /**
+     * @return DataDefinitionInterface
+     */
+    public function getContextDefinition() {
+    return new DataDefinition($this->contextDefinition);
+  }
+
   /**
    * Gets the context value as typed data object.
    *