$this->id, 'state' => $this->state, 'email_sent' => $this->email_sent, 'total_qty' => $this->total_qty, 'base_currency_code' => $this->base_currency_code, 'channel_currency_code' => $this->channel_currency_code, 'order_currency_code' => $this->order_currency_code, 'sub_total' => $this->sub_total, 'base_sub_total' => $this->base_sub_total, 'grand_total' => $this->grand_total, 'base_grand_total' => $this->base_grand_total, 'shipping_amount' => $this->shipping_amount, 'base_shipping_amount' => $this->base_shipping_amount, 'tax_amount' => $this->tax_amount, 'base_tax_amount' => $this->base_tax_amount, 'discount_amount' => $this->discount_amount, 'base_discount_amount' => $this->base_discount_amount, 'order_address' => new OrderAddress($this->address), 'transaction_id' => $this->transaction_id, 'items' => InvoiceItem::collection($this->items), ]; } }