Add optional progress field to simple batch

setra_client/models.py

@@ -82,6 +82,7 @@ class Batch(BaseModel):
     period: typing.Optional[str]
     interface: str
     vouchertype: typing.Optional[str]
+    batch_progress: typing.Optional[str]
     vouchers: typing.Optional[typing.List[Voucher]]
 
 

tests/fixtures/batch_without_voucher_field.json

@@ -3,5 +3,6 @@
   "batchid": 20,
   "period": 30,
   "interface": 40,
+  "batch_progress": "ubw_import_ok",
   "vouchertype": 50
 }