From 13263d5f26a1343b601664427c99a3c0a1e9b693 Mon Sep 17 00:00:00 2001
From: Reimar Leike <reimar@leike.name>
Date: Mon, 11 Jun 2018 18:20:32 +0200
Subject: [PATCH] fixed missing input

---
 nifty4/sugar.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nifty4/sugar.py b/nifty4/sugar.py
index 0dd0be5d8..33db00de2 100644
--- a/nifty4/sugar.py
+++ b/nifty4/sugar.py
@@ -21,6 +21,7 @@ import numpy as np
 from .domains.power_space import PowerSpace
 from .field import Field
 from .multi.multi_field import MultiField
+from .multi.block_diagonal_operator import BlockDiagonalOperator
 from .multi.multi_domain import MultiDomain
 from .operators.diagonal_operator import DiagonalOperator
 from .operators.scaling_operator import ScalingOperator
-- 
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