## AlertBanner
`AlertBanner` components are used to inform users of important messages.
**Params**
| Param | Type | Default | Description |
| --- | --- | --- | --- |
| type | String
|
| The banner type. This comes from the message-types helper. |
| [secondIconType] | String
|
| If you want a second icon to appear to the right of the title. This comes from the message-types helper. |
| [progressBar] | Object
|
| An object containing a value and maximum for a progress bar. Will be displayed next to the message title. |
| [message] | String
|
| The message to display within the banner. |
| [title] | String
|
| A title to show above the message. If this is not provided, there are default values for each type of alert. |
**Example**
```js
```
**See**
- [Uses of AlertBanner](https://github.com/hashicorp/vault/search?l=Handlebars&q=AlertBanner+OR+alert-banner)
- [AlertBanner Source Code](https://github.com/hashicorp/vault/blob/main/ui/lib/core/addon/components/alert-banner.js)
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