feat: attrs on product

barcodes/attributes/inn_attribute_getter.py

@@ -0,0 +1,12 @@
+from barcodes.attributes.base import BaseAttributeGetter
+from models import Product, Client, ClientDetails
+
+
+class InnAttributeGetter(BaseAttributeGetter):
+    def get_value(self, product: Product):
+        client: Client = product.client
+        client_details: ClientDetails = client.details
+        result = client_details.inn
+        if not result:
+            result = ''
+        return result