Issue #23504: Added an __all__ to the types module.

diff --cc Misc/NEWS
index a3fc735a9653961358aa1c8b430c0f4d5781e511,75e1cc1c2d928bf73143498f2deeeb58781513eb..0e0b2a5802ee22a473040f327253f2242f44e669
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -13,16 -13,10 +13,18 @@@ Core and Builtin
  Library
  -------
  
+ - Issue #23504: Added an __all__ to the types module.
+ 
 +- Issue #23563: Optimized utility functions in urllib.parse.
 +
 +- Issue #7830: Flatten nested functools.partial.
 +
  - Issue #20204: Added the __module__ attribute to _tkinter classes.
  
 +- Issue #19980: Improved help() for non-recognized strings.  help('') now
 +  shows the help on str.  help('help') now shows the help on help().
 +  Original patch by Mark Lawrence.
 +
  - Issue #23521: Corrected pure python implementation of timedelta division.
  
   * Eliminated OverflowError from timedelta * float for some floats;