[Home](./index.md) > [@digitalpersona/core](./core.md) > [BioSampleHeader](./core.biosampleheader.md) > [(constructor)](./core.biosampleheader.(constructor).md) ## BioSampleHeader.(constructor) Constructs a new instance of the `BioSampleHeader` class Signature: ```typescript constructor( Factor: BioFactor, Format: BioSampleFormat, Type: BioSampleType, Purpose: BioSamplePurpose, Quality: number, Encryption: BioSampleEncryption); ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | Factor | BioFactor | | | Format | BioSampleFormat | | | Type | BioSampleType | | | Purpose | BioSamplePurpose | | | Quality | number | | | Encryption | BioSampleEncryption | |