[Home](./index.md) > [@digitalpersona/core](./core.md) > [BioSample](./core.biosample.md) > [(constructor)](./core.biosample.(constructor).md) ## BioSample.(constructor) Constructs a new instance of the `BioSample` class Signature: ```typescript constructor( Header: BioSampleHeader, Data: Base64UrlString); ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | Header | BioSampleHeader | | | Data | Base64UrlString | |