Explicitly state that pickling or copying should work

gvanrossum · gvanrossum · commit 1480aee1214a · 2020-02-04T17:24:24.000-08:00
diff --git a/pep-0585.rst b/pep-0585.rst
@@ -195,6 +195,9 @@ and::
 For accessing the proxy type from Python code, it will be exported
 from the ``types`` module as ``GenericAlias``.
 
+Pickling or (shallow- or deep-) copying a ``GenericAlias`` instance
+will preserve the type, origin, attributes and parameters.
+
 
 Forward compatibility
 ---------------------
