put class on parent scope

layercake/layercake/dynamodb.py

@@ -477,6 +477,15 @@ class DynamoDBPersistenceLayer:
             return True
 
 
+class MissingError(ValueError):
+    pass
+
+
+class PaginatedResult(TypedDict):
+    items: list[dict]
+    last_key: str | None
+
+
 class DynamoDBCollection:
     """
     Example
@@ -508,13 +517,6 @@ class DynamoDBCollection:
         )
     """
 
-    class MissingError(ValueError):
-        pass
-
-    class PaginatedResult(TypedDict):
-        items: list[dict]
-        last_key: str | None
-
     def __init__(
         self,
         persistence_layer: DynamoDBPersistenceLayer,

layercake/tests/test_dynamodb.py

@@ -10,6 +10,7 @@ from layercake.dynamodb import (
     DynamoDBCollection,
     DynamoDBPersistenceLayer,
     KeyPair,
+    MissingError,
     PartitionKey,
     TransactItems,
     serialize,
@@ -103,7 +104,7 @@ def test_collection_get_item(
         'update_date': '2023-11-09T12:13:04.308986-03:00',
     }
 
-    with pytest.raises(DynamoDBCollection.MissingError):
+    with pytest.raises(MissingError):
         collect.get_item(key=KeyPair('5OxmMjL-ujoR5IMGegQz', 'notfound'))