explicitly specify the region

Author: MacHu-GWU

pynamodb_mate/patterns/cache/backend/dynamodb.py

@@ -42,17 +42,16 @@ class DynamoDBBackend(
     def __init__(
         self,
         table_name: str,
-        region: T.Optional[str] = None,
+        region: str,
         billing_mode: T.Optional[str] = PAY_PER_REQUEST_BILLING_MODE,
         write_capacity_units: T.Optional[int] = None,
         read_capacity_units: T.Optional[int] = None,
         create: bool = True,
     ):
         meta_kwargs = dict(
             table_name=table_name,
+            region=region,
         )
-        if region:  # pragma: no cover
-            meta_kwargs["region"] = region
         if billing_mode:
             meta_kwargs["billing_mode"] = billing_mode
         if write_capacity_units:  # pragma: no cover

tests/patterns/test_cache.py

@@ -40,10 +40,12 @@ def test(self):
 class Base(BaseTest):
     json_dict_dynamodb_cache = JsonDictDynamodbCache(
         table_name=f"pynamodb-mate-test-cache-{PY_VER}-{PYNAMODB_VER}",
+        region="us-east-1",
         create=False,
     )
     json_list_dynamodb_cache = JsonListDynamodbCache(
         table_name=f"pynamodb-mate-test-cache-{PY_VER}-{PYNAMODB_VER}",
+        region="us-east-1",
         create=False,
     )
     model_list = [