feat: Implement basic general folder support (#2051)

- Related: #1748

src/ha/is-hass-different.ts

@@ -0,0 +1,24 @@
+import { getHassDifferences } from './get-hass-differences';
+import { HomeAssistant } from './types';
+
+/**
+ * Determine if two hass objects are different for a list of entities.
+ * @param newHass The new HA object.
+ * @param oldHass The old HA object.
+ * @param entities The entities to examine for changes.
+ * @param options An options object. stateOnly: whether or not to compare state strings only.
+ * @returns An array of HassStateDifference objects.
+ */
+export function isHassDifferent(
+  newHass: HomeAssistant | undefined | null,
+  oldHass: HomeAssistant | undefined | null,
+  entities: string[] | null,
+  options?: {
+    stateOnly?: boolean;
+  },
+): boolean {
+  return !!getHassDifferences(newHass, oldHass, entities, {
+    ...options,
+    firstOnly: true,
+  }).length;
+}