FIX: minor typo fixed

integrationtests/basic_example/test_basic.py

@@ -263,7 +263,7 @@ def test_identifiable_update(clear_database, usemodel, ident, crawler):
             record.get_property("date").value = "2012-01-02"
             print("one change")
             break
-    ins, ups = synchronize(crawled_data, debug_tree = )
+    ins, ups = synchronize(crawled_data)
     assert len(ins) == 1
     assert len(ups) == 0