diff --git a/core/interfaces/i_metrics_manager.js b/core/interfaces/i_metrics_manager.js
index b8cbd2231..db1f575c1 100644
--- a/core/interfaces/i_metrics_manager.js
+++ b/core/interfaces/i_metrics_manager.js
@@ -14,8 +14,11 @@
 goog.module('Blockly.IMetricsManager');
 goog.module.declareLegacyNamespace();
 
+/* eslint-disable-next-line no-unused-vars */
 const Metrics = goog.requireType('Blockly.utils.Metrics');
+/* eslint-disable-next-line no-unused-vars */
 const Size = goog.requireType('Blockly.utils.Size');
+/* eslint-disable-next-line no-unused-vars */
 const {AbsoluteMetrics, ContainerRegion, ToolboxMetrics} = goog.requireType('Blockly.MetricsManager');