Initial import from Docker volume

modules/carrier_carriage/account.py

@@ -0,0 +1,13 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.model import fields
+from trytond.pool import PoolMeta
+
+
+class InvoiceLine(metaclass=PoolMeta):
+    __name__ = 'account.invoice.line'
+
+    cost_shipment_carriages = fields.One2Many(
+        'stock.shipment.carriage', 'cost_invoice_line',
+        "Cost of Shipment Carriages", readonly=True)