Channel options interface.

**Signature:**

    export interface ChannelOptions 

## Properties

| Property | Type | Description |
|---|---|---|
| [allowedEventTypes](https://firebase.google.com/docs/reference/admin/node/firebase-admin.eventarc.channeloptions#channeloptionsallowedeventtypes) | string\[\] \| string \| undefined | An array of allowed event types. If specified, publishing events of unknown types is a no op. When not provided, no event filtering is performed. |

## ChannelOptions.allowedEventTypes

An array of allowed event types. If specified, publishing events of unknown types is a no op. When not provided, no event filtering is performed.

**Signature:**

    allowedEventTypes?: string[] | string | undefined;