code: static function getDefaultImplementations()
      {
          return [
              Cart\Model\CartInterface::class                 => Cart\Entity\Cart::class,
              Cart\Model\CartAddressInterface::class          => Cart\Entity\CartAddress::class,
  
              Customer\Model\CustomerInterface::class         => Customer\Entity\Customer::class,
              Customer\Model\CustomerGroupInterface::class    => Customer\Entity\CustomerGroup::class,
              Customer\Model\CustomerAddressInterface::class  => Customer\Entity\CustomerAddress::class,
  
              Order\Model\OrderInterface::class               => Order\Entity\Order::class,
              Order\Model\OrderAddressInterface::class        => Order\Entity\OrderAddress::class,
  
              Payment\Model\PaymentMethodInterface::class     => Payment\Entity\PaymentMethod::class,
              Payment\Model\PaymentTermInterface::class       => Payment\Entity\PaymentTerm::class,
  
              Quote\Model\QuoteInterface::class               => Quote\Entity\Quote::class,
              Quote\Model\QuoteAddressInterface::class        => Quote\Entity\QuoteAddress::class,
  
              Shipment\Model\ShipmentMethodInterface::class   => Shipment\Entity\ShipmentMethod::class,
  
              Supplier\Model\SupplierInterface::class         => Supplier\Entity\Supplier::class,
              Supplier\Model\SupplierAddressInterface::class  => Supplier\Entity\SupplierAddress::class,
              Supplier\Model\SupplierDeliveryInterface::class => Supplier\Entity\SupplierDelivery::class,
              Supplier\Model\SupplierOrderInterface::class    => Supplier\Entity\SupplierOrder::class,
              Supplier\Model\SupplierProductInterface::class  => Supplier\Entity\SupplierProduct::class,
  
              Support\Model\TicketInterface::class            => Support\Entity\Ticket::class,
              Support\Model\TicketMessageInterface::class     => Support\Entity\TicketMessage::class,
          ];
      }
docs: Returns the default models implementations.
  
  @return array