/**
  * Configuration constructor.
  *
  * @param \Magento\Backend\Block\Template\Context $context
  * @param \Magento\Config\Model\Config\Structure  $configStructure
  * @param array                                   $data
  */
 public function __construct(\Magento\Backend\Block\Template\Context $context, \Magento\Config\Model\Config\Structure $configStructure, array $data = [])
 {
     parent::__construct($context, $configStructure, $data);
     $this->_prepareRequestParams();
     $this->setTitle(__('dotmailer Configuration'));
     $this->_resetRequestParams();
 }