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# BiosealLicense.checkLicenseWithCard Method

Module: BiosealLicense

## Definition

Checks the license by using a card-based verification process.

It takes the path to the license file and outputs a challenge response for further verification.

    static Uint8List checkLicenseWithCard(String? licensePath)

Parameters

`licensePath` String
in The file path to the license that needs to be checked.

Returns

`Uint8List`
An array to hold the challenge response generated by the host.
This 16-byte array is used in the license verification process.

Exceptions

BiosealException
An error has occurred during Bioseal Library execution.