From da8c929ccc669cbaffbe49f84b0bd19456c22706 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Al=C3=A1n=20Mu=C3=B1oz?= <alan.munoz@ed.ac.uk>
Date: Mon, 3 Apr 2023 13:38:59 +0100
Subject: [PATCH] change(pp): add def, typing to lineage process abc

---
 src/postprocessor/core/lineageprocess.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/postprocessor/core/lineageprocess.py b/src/postprocessor/core/lineageprocess.py
index ff332fab..a3d1f919 100644
--- a/src/postprocessor/core/lineageprocess.py
+++ b/src/postprocessor/core/lineageprocess.py
@@ -40,7 +40,7 @@ class LineageProcess(PostProcessABC):
     def as_function(
         cls,
         data: pd.DataFrame,
-        lineage: t.Union[t.Dict[t.Tuple[int], t.List[int]]],
+        lineage: t.Union[t.Dict[t.Tuple[int], t.List[int]]] = None,
         *extra_data,
         **kwargs,
     ):
-- 
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