diff --git a/mattport/nerf/graph.py b/mattport/nerf/graph.py
index 389ed6867..f309a46fa 100644
--- a/mattport/nerf/graph.py
+++ b/mattport/nerf/graph.py
@@ -24,6 +24,7 @@ class Node:
     def __hash__(self):
         return hash(self.name)
 
+
 class Graph(nn.Module):
     """_summary_"""
 
diff --git a/tests/nerf/test_graph.py b/tests/nerf/test_graph.py
index 00530a164..96a10d1ce 100644
--- a/tests/nerf/test_graph.py
+++ b/tests/nerf/test_graph.py
@@ -147,4 +147,4 @@ def test_construct_graph_complex():
     assert len(roots) == 1
     roots = list(roots)
     targets = [("encoder_0", 3), ("mlp_0", 2), ("mlp_3", 0)]
-    check_consistency(roots[0], targets)
\ No newline at end of file
+    check_consistency(roots[0], targets)