Update plot.py

src/ott/tools/plot.py

@@ -233,7 +233,7 @@ def animate(
     """Make an animation from several transports."""
     _ = self(transports[0])
     if titles is None:
-      titles = [None for _ in np.range(0, len(transports))]
+      titles = [None for _ in np.arange(0, len(transports))]
     assert len(titles) == len(transports), (
         f"titles/transports lengths differ `{len(titles)}`/`{len(transports)}`."
     )