protected function getPluginFields()
    {
        return array(
            'debug' => array(
                'type' => 'radio',
                'label' => $this->t('field_debug'),
                'description' => $this->t('desc_debug'),
                'options' => array(
                    PluginConfig::Send_SendAndMailOnError => $this->t('option_debug_1'),
                    PluginConfig::Send_SendAndMail => $this->t('option_debug_2'),
                    PluginConfig::Send_TestMode => $this->t('option_debug_3'),
                ),
                'attributes' => array(
                    'required' => true,
                ),
            ),
            'logLevel' => array(
                'type' => 'radio',
                'label' => $this->t('field_logLevel'),
                'description' => $this->t('desc_logLevel'),
                'options' => array(
                    Log::Notice => $this->t('option_logLevel_3'),
                    Log::Info => $this->t('option_logLevel_4'),
                    Log::Debug => $this->t('option_logLevel_5'),
                ),
                'attributes' => array(
                    'required' => true,
                ),
            ),
        );
    }