Try to fix mypy

Chia-Network · Jan 29, 2025 · 942ad22 · 942ad22
1 parent 2b08935
commit 942ad22
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/chia/data_layer/data_store.py b/chia/data_layer/data_store.py
@@ -1458,7 +1458,7 @@ async def write_tree_to_file(
             hash_to_index = merkle_blob.get_hashes_indexes()
         if existing_hashes is None:
             if root.generation == 0:
-                existing_hashes = {}
+                existing_hashes = set()
             else:
                 previous_root = await self.get_tree_root(store_id=store_id, generation=root.generation - 1)
                 previous_merkle_blob = await self.get_merkle_blob(previous_root.node_hash)