Add a note that pickling is supported.
diff --git a/Doc/lib/libparser.tex b/Doc/lib/libparser.tex
index 434786b..a27c562 100644
--- a/Doc/lib/libparser.tex
+++ b/Doc/lib/libparser.tex
@@ -275,6 +275,8 @@
first argument may change to object methods in the future.
Ordered and equality comparisons are supported between AST objects.
+Pickling of AST objects (using the \module{pickle} module) is also
+supported.
\begin{datadesc}{ASTType}
The type of the objects returned by \function{expr()},
diff --git a/Doc/libparser.tex b/Doc/libparser.tex
index 434786b..a27c562 100644
--- a/Doc/libparser.tex
+++ b/Doc/libparser.tex
@@ -275,6 +275,8 @@
first argument may change to object methods in the future.
Ordered and equality comparisons are supported between AST objects.
+Pickling of AST objects (using the \module{pickle} module) is also
+supported.
\begin{datadesc}{ASTType}
The type of the objects returned by \function{expr()},