diff --git a/pyproject.toml b/pyproject.toml
index 49ba8835..86c889d5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,4 +67,7 @@ push = false
 
 [tool.bumpver.file_patterns]
 "pyproject.toml" = ['current_version = "{version}"', 'version = "{version}"']
-"src/msgraph_core/_constants.py" = ["{version}"]
\ No newline at end of file
+"src/msgraph_core/_constants.py" = ["{version}"]
+
+[tool.poetry.packages]
+include = ["src/msgraph_core"]
\ No newline at end of file
diff --git a/src/msgraph_core/models/upload_result.py b/src/msgraph_core/models/upload_result.py
index a8edf258..1adc8af4 100644
--- a/src/msgraph_core/models/upload_result.py
+++ b/src/msgraph_core/models/upload_result.py
@@ -1,4 +1,4 @@
-from typing import Any, Callable, Dict, List, Optional, TypeVar
+from typing import Any, Callable, Dict, List, Optional, TypeVar, Generic
 
 from dataclasses import dataclass
 from datetime import datetime
@@ -50,9 +50,9 @@ def serialize(self, writer: SerializationWriter) -> None:
         writer.write_additional_data_value(self.additional_data)
 
 
-class UploadResult:
+class UploadResult(Generic[T]):
 
-    def __init__(self):
+    def __init__(self) -> None:
         self.upload_session: Optional[UploadSessionDataHolder] = None
         self.item_response: Optional[T] = None
         self.location: Optional[str] = None
diff --git a/src/msgraph_core/py.typed.txt b/src/msgraph_core/py.typed.txt
new file mode 100644
index 00000000..e69de29b
diff --git a/src/msgraph_core/tasks/large_file_upload.py b/src/msgraph_core/tasks/large_file_upload.py
index dcb5c5c0..88b9422b 100644
--- a/src/msgraph_core/tasks/large_file_upload.py
+++ b/src/msgraph_core/tasks/large_file_upload.py
@@ -133,7 +133,7 @@ async def upload(self, after_chunk_upload: Optional[Callable] = None):
                 logging.error("Error uploading chunk  %s", error)
             finally:
                 self.chunks -= 1
-        upload_result = UploadResult()
+        upload_result: UploadResult[Any] = UploadResult()
         upload_result.item_response = response
         upload_result.location = self.upload_session.upload_url
         return upload_result