Cleanup

tests/test_voicing.py

@@ -1,3 +1,4 @@
+import generator.validation
 import copy
 import pathlib
 import unittest
@@ -209,7 +210,7 @@ class VoicingTests(unittest.TestCase):
     source = generator.musicxml.load_musicxml(pathlib.Path('data/songs/autumn_leaves.xml'))
     before = copy.deepcopy(source)
     result = generator.arrange.generate.arrange_document(source, 'electric')
-    generator.model.validate_document(result)
+    generator.validation.validate_document(result)
     section, checked = '', set()
     source_index = generator.score.body_start_measure_index(source['staves'][0]['measures'])
     for measure in result['staves'][0]['measures']: