DOC: Updated return types in docstrings

zipline/testing/fixtures.py

@@ -366,6 +366,12 @@ class WithAssetFinder(WithDefaultDateBounds):
 
     @classmethod
     def make_asset_finder(cls):
+        """Returns a new AssetFinder
+
+        Returns
+        -------
+        asset_finder : zipline.assets.AssetFinder
+        """
         return cls.enter_class_context(tmp_asset_finder(
             url=cls.make_asset_finder_db_url(),
             equities=cls.make_equity_info(),

zipline/utils/calendars/calendar_utils.py

@@ -67,7 +67,7 @@ class TradingCalendarDispatcher(object):
 
         Returns
         -------
-        TradingCalendar
+        calendar : zipline.utils.calendars.TradingCalendar
             The desired calendar.
         """
         canonical_name = self.resolve_alias(name)