private function getSMSAPICredential()
{
$settings = $this->getCredentialManagerSettings();
return array(MobileMessaging::PROVIDER_OPTION => isset($settings[MobileMessaging::PROVIDER_OPTION]) ? $settings[MobileMessaging::PROVIDER_OPTION] : null, MobileMessaging::API_KEY_OPTION => isset($settings[MobileMessaging::API_KEY_OPTION]) ? $settings[MobileMessaging::API_KEY_OPTION] : null);
}