DOC: Don't show TickHelper in dates inheritance diagram.

QuLogic · QuLogic · commit c280ff72cca3 · 2021-05-27T21:05:10.000-04:00
diff --git a/doc/api/dates_api.rst b/doc/api/dates_api.rst
@@ -4,6 +4,7 @@
 
 .. inheritance-diagram:: matplotlib.dates
    :parts: 1
+   :top-classes: matplotlib.ticker.Formatter, matplotlib.ticker.Locator
 
 .. automodule:: matplotlib.dates
    :members:
