From 33d2e681301c1c37b257dbbfe6d50ef7cf56c47a Mon Sep 17 00:00:00 2001
From: Angus Hollands <goosey15@gmail.com>
Date: Sun, 8 Oct 2023 12:19:48 +0100
Subject: [PATCH] fix: don't import protocol

---
 src/coffea/nanoevents/factory.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/coffea/nanoevents/factory.py b/src/coffea/nanoevents/factory.py
index 40d1bda53..8361eaaa2 100644
--- a/src/coffea/nanoevents/factory.py
+++ b/src/coffea/nanoevents/factory.py
@@ -11,7 +11,6 @@
 import dask_awkward
 import fsspec
 import uproot
-from dask_awkward import ImplementsFormTransformation
 
 from coffea.nanoevents.mapping import (
     CachedMapping,
@@ -68,7 +67,7 @@ def _key_formatter(prefix, form_key, form, attribute):
     return prefix + f"/{attribute}/{form_key}"
 
 
-class _map_schema_base(ImplementsFormTransformation):
+class _map_schema_base: # ImplementsFormMapping, ImplementsFormMappingInfo
     def __init__(
         self, schemaclass=BaseSchema, metadata=None, behavior=None, version=None
     ):