> ## Documentation Index
> Fetch the complete documentation index at: https://docs.crossmint.com/llms.txt
> Use this file to discover all available pages before exploring further.

# NonCustodialSignerCallback

> Swift Structure

**Structure**

```swift theme={null}
struct NonCustodialSignerCallback
```

## Instance Properties

### otpCancelled

```swift theme={null}
let otpCancelled: () -> Void
```

### otpCode

```swift theme={null}
let otpCode: (String) -> Void
```

## Type Properties

### noOp

```swift theme={null}
static var noOp: NonCustodialSignerCallback { get }
```