---
id: gravityview-inspector-extension_mount_classes
title: "Filter - gravityview/inspector/extension_mount_classes"
sidebar_label: "gravityview/inspector/extension_mount_classes"
---

# Filter: gravityview/inspector/extension_mount_classes

Filters the map of recognized extension-slot mount classes.

Keys are CSS class names the add-on injects into its `html` setting. Values are short extension identifiers used for telemetry / UI labelling.

## Parameters

| Name | Type | Description |
|------|------|-------------|
| $map | `array<string,string>` |  |

### Since

- TBD: TBD

### Source

Defined in `src/REST/InspectorRoute.php` at line 8188