@digitalpersona/core
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DigitalPersona Web Access Core library
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[Home](./index.md) > [@digitalpersona/core](./core.md) > [FaceImage](./core.faceimage.md) > [toBioSample](./core.faceimage.tobiosample.md)
## FaceImage.toBioSample() method
Exports the face image data to a [BioSample](./core.biosample.md) object.
<b>Signature:</b>
```typescript
toBioSample(format?: BioSampleFormat, purpose?: BioSamplePurpose, sdkVersion?: number): BioSample;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| format | <code>BioSampleFormat</code> | |
| purpose | <code>BioSamplePurpose</code> | |
| sdkVersion | <code>number</code> | |
<b>Returns:</b>
`BioSample`