FUIPasscodeValidationDelegate public protocol FUIPasscodeValidationDelegate : AnyObject This delegate is responsible to do additional validations to the passcode user entered. FUIPasscodeCreateController will validate the passcode user entered with the FUIPasscodePolicy internally. validate(passcode:) Validate the passcode user entered. Throws FUIPasscodeControllerError when validation fails. Declaration Swift func validate(passcode: String) throws Parameters passcode The passcode to be validated.