diff --git a/moto/moto_proxy/utils.py b/moto/moto_proxy/utils.py
index 7fc3017b3..71b873782 100644
--- a/moto/moto_proxy/utils.py
+++ b/moto/moto_proxy/utils.py
@@ -2,17 +2,20 @@ from typing import Dict, Optional, Tuple
 
 import multipart
 
+class Part:
+    headers = []
+    data : bytes
 
 def get_body_from_form_data(
     body: bytes, boundary: str
 ) -> Tuple[Optional[bytes], Dict[str, str]]:
     print("YO BYTES", body)
 
-    current_part = { headers : [], data : "" }
+    current_part = Part()
     parts = []
 
     def on_part_begin():
-        current_part = { headers : [], data : "" }
+        current_part = Part()
         print("YO PART BEGAN")
         return