chore: linting issue
diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index 99b9c4e..cf89b33 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -920,7 +920,7 @@
 										item=item,
 									)
 								)
-                
+
 						# update gross amount of asset bought through this document
 						assets = frappe.db.get_all(
 							"Asset", filters={"purchase_invoice": self.name, "item_code": item.item_code}