---
title: check
framework: proximityreader
role: symbol
role_heading: Type Property
path: proximityreader/mobiledriverslicensedisplayrequest/options-swift.struct/validationmode-swift.struct/check
---

# check

A button that enables the user to perform a single document request.

## Declaration

```swift
static let check: MobileDriversLicenseDisplayRequest.Options.ValidationMode
```