function get_checkout_buttons()
 {
     $buttons = parent::call_parent('get_checkout_buttons');
     if ($this->is_paypal_express_checkout_enabled()) {
         $buttons[] = 'paypal_express_checkout';
     }
     return $buttons;
 }
 function get_checkout_buttons()
 {
     $buttons = parent::call_parent('get_checkout_buttons');
     if (C_NextGen_Settings::get_instance()->ecommerce_test_gateway_enable) {
         $buttons[] = 'test_gateway_checkout';
     }
     return $buttons;
 }
 function get_checkout_buttons()
 {
     $buttons = parent::call_parent('get_checkout_buttons');
     if (C_NextGen_Settings::get_instance()->get('ecommerce_cheque_enable', FALSE)) {
         $buttons[] = 'cheque_checkout';
     }
     return $buttons;
 }
 function get_checkout_buttons()
 {
     $buttons = parent::call_parent('get_checkout_buttons');
     if ($this->is_stripe_enabled()) {
         $buttons[] = 'stripe_checkout';
     }
     return $buttons;
 }