An email sent to the customer via admin.
Author: WooThemes
Inheritance: extends WC_Email
 /**
  * get_heading function.
  *
  * @access public
  * @return string
  */
 function get_heading()
 {
     return apply_filters('woocommerce_email_heading_customer_renewal_order', parent::get_heading(), $this->object);
 }
 /**
  * Initialise Settings Form Fields, but add an enable/disable field
  * to this email as WC doesn't include that for customer Invoices.
  *
  * @access public
  * @return void
  */
 function init_form_fields()
 {
     parent::init_form_fields();
     $this->form_fields = array_merge(array('enabled' => array('title' => __('Enable/Disable', 'woocommerce'), 'type' => 'checkbox', 'label' => __('Enable this email notification', 'woocommerce'), 'default' => 'yes')), $this->form_fields);
 }
 /**
  * Initialise Settings Form Fields, but add an enable/disable field
  * to this email as WC doesn't include that for customer Invoices.
  *
  * @access public
  * @return void
  */
 function init_form_fields()
 {
     parent::init_form_fields();
     if (isset($this->form_fields['heading_paid'])) {
         unset($this->form_fields['heading_paid']);
     }
     if (isset($this->form_fields['subject_paid'])) {
         unset($this->form_fields['subject_paid']);
     }
     $this->form_fields = array_merge(array('enabled' => array('title' => _x('Enable/Disable', 'an email notification', 'woocommerce-subscriptions'), 'type' => 'checkbox', 'label' => __('Enable this email notification', 'woocommerce-subscriptions'), 'default' => 'yes')), $this->form_fields);
 }