> ## Documentation Index
> Fetch the complete documentation index at: https://colin-feat-client-cache-mode.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ProgressHandler

```ts theme={null}
type ProgressHandler = (progress, total?, message?) => void | Promise<void>;
```

Defined in: [client/handlers.ts:12](https://github.com/PrefectHQ/fastmcp-ts/blob/8976c37f79efa6b87809b884f29a1f235a8c4ad1/src/client/handlers.ts#L12)

## Parameters

### progress

`number`

### total?

`number`

### message?

`string`

## Returns

`void` | `Promise`\<`void`>