@Override
    public boolean isAvailable(final RegisteredService service) {
        return canPing();
    }
The authentication provider for yubikey.

@author Misagh Moayyed
@since 5.0.0
support/cas-server-support-radius-core-mfa/src/main/java/org/apereo/cas/adaptors/radius/authentication/RadiusMultifactorAuthenticationProvider.java