feat: mypy for all type check (#10921)

api/controllers/console/files.py

@@ -1,6 +1,8 @@
+from typing import Literal
+
 from flask import request
-from flask_login import current_user
-from flask_restful import Resource, marshal_with
+from flask_login import current_user  # type: ignore
+from flask_restful import Resource, marshal_with  # type: ignore
 from werkzeug.exceptions import Forbidden
 
 import services
@@ -48,7 +50,8 @@ class FileApi(Resource):
     @cloud_edition_billing_resource_check("documents")
     def post(self):
         file = request.files["file"]
-        source = request.form.get("source")
+        source_str = request.form.get("source")
+        source: Literal["datasets"] | None = "datasets" if source_str == "datasets" else None
 
         if "file" not in request.files:
             raise NoFileUploadedError()