2289
2279
return KnitGraphIndex(combined_index, deltas=deltas,
2290
2280
add_callback=add_callback)
2297
('parent', ('tail', 'ghost')),
2301
2282
def test_get_ancestry(self):
2302
2283
# get_ancestry is defined as eliding ghosts, not erroring.
2303
2284
index = self.two_graph_index()