diff --git a/src/components/cylc/common/deltas.js b/src/components/cylc/common/deltas.js
index ef5a2f9ef..acc3c0641 100644
--- a/src/components/cylc/common/deltas.js
+++ b/src/components/cylc/common/deltas.js
@@ -15,6 +15,11 @@
* along with this program. If not, see .
*/
+import Vue from 'vue'
+import mergeWith from 'lodash/mergeWith'
+import isArray from 'lodash/isArray'
+import { mergeWithCustomizer } from '@/components/cylc/common/merge'
+
/**
* @typedef {Object} GraphQLResponseData
* @property {Deltas} deltas
@@ -79,3 +84,133 @@
* @property {Array} familyProxies - IDs of family proxies removed
* @property {Array} jobs - IDs of jobs removed
*/
+
+/**
+ * @typedef {Object} Result
+ * @property {Array