diff --git a/src/place_picker/place_picker.ts b/src/place_picker/place_picker.ts
index 23c8f0c..3352ed4 100644
--- a/src/place_picker/place_picker.ts
+++ b/src/place_picker/place_picker.ts
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+// Placeholder for objectProperty (google3-only)
 import {css, html, PropertyValues} from 'lit';
 import {customElement, property, query, state} from 'lit/decorators.js';
 
@@ -255,13 +256,13 @@ export class PlacePicker extends BaseComponent {
   private readonly autocomplete = new Deferred<Autocomplete>();
 
   protected override willUpdate(changedProperties: PropertyValues) {
-    if (changedProperties.has('disableSearch') && this.disableSearch &&
-        this.focusController.isKeyboardNavigating &&
+    if (changedProperties.has(/* @state */ 'disableSearch') &&
+        this.disableSearch && this.focusController.isKeyboardNavigating &&
         getDeepActiveElement() === this.searchButtonElement) {
       this.clearButtonElement?.focus();
     }
-    if (changedProperties.has('hideClearButton') && this.hideClearButton &&
-        this.focusController.isKeyboardNavigating &&
+    if (changedProperties.has(/* @state */ 'hideClearButton') &&
+        this.hideClearButton && this.focusController.isKeyboardNavigating &&
         getDeepActiveElement() === this.clearButtonElement) {
       this.inputElement?.focus();
     }
@@ -318,7 +319,7 @@ export class PlacePicker extends BaseComponent {
       const map = await this.getMapById(this.forMap);
       map && this.bindTo(map);
     }
-    if (changedProperties.has('valueInternal')) {
+    if (changedProperties.has(/* @state */ 'valueInternal')) {
       this.dispatchEvent(new Event('gmpx-placechange'));
     }
   }
diff --git a/src/store_locator/store_locator.ts b/src/store_locator/store_locator.ts
index 2ab71a6..2565cb0 100644
--- a/src/store_locator/store_locator.ts
+++ b/src/store_locator/store_locator.ts
@@ -12,6 +12,7 @@ import '../place_picker/place_picker.js';
 import '../icon_button/icon_button.js';
 import '../place_building_blocks/place_directions_button/place_directions_button.js';
 
+// Placeholder for objectProperty (google3-only)
 import {html, nothing} from 'lit';
 import {customElement, property, query, state} from 'lit/decorators.js';
 import {classMap} from 'lit/directives/class-map.js';
@@ -199,7 +200,7 @@ export class StoreLocator extends BaseComponent {
    */
   protected override willUpdate(changedProperties: Map<string, unknown>) {
     if (changedProperties.has('listings') ||
-        changedProperties.has('initialized')) {
+        changedProperties.has(/* @state */ 'initialized')) {
       this.internalListings =
           (this.listings ?? []).map((x) => this.createInternalListing(x));
       this.listingDistances.clear();
@@ -210,12 +211,12 @@ export class StoreLocator extends BaseComponent {
     // Perform map updates after the DOM has rendered, so the map element
     // will exist.
     if (changedProperties.has('listings') ||
-        changedProperties.has('initialized')) {
+        changedProperties.has(/* @state */ 'initialized')) {
       this.updateBounds();
     }
 
     if ((changedProperties.has('mapOptions') ||
-         changedProperties.has('initialized')) &&
+         changedProperties.has(/* @state */ 'initialized')) &&
         this.mapOptions) {
       this.mapElement?.innerMap?.setOptions(this.mapOptions);
     }