From 8427e09424bb6491d2c570baafde27c112e4852f Mon Sep 17 00:00:00 2001
From: Andrew Mitchell <32021055+mitch292@users.noreply.github.com>
Date: Thu, 1 Oct 2020 21:48:09 -0400
Subject: [PATCH] ast.get_docstring: fix return type (#4595)

Resolves #4575
---
 stdlib/3/ast.pyi                 | 2 +-
 third_party/3/typed_ast/ast3.pyi | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/stdlib/3/ast.pyi b/stdlib/3/ast.pyi
index 6192dde00..8011424cf 100644
--- a/stdlib/3/ast.pyi
+++ b/stdlib/3/ast.pyi
@@ -191,7 +191,7 @@ else:
     def dump(node: AST, annotate_fields: bool = ..., include_attributes: bool = ...) -> str: ...
 
 def fix_missing_locations(node: _T) -> _T: ...
-def get_docstring(node: AST, clean: bool = ...) -> str: ...
+def get_docstring(node: AST, clean: bool = ...) -> Optional[str]: ...
 def increment_lineno(node: _T, n: int = ...) -> _T: ...
 def iter_child_nodes(node: AST) -> Iterator[AST]: ...
 def iter_fields(node: AST) -> Iterator[_typing.Tuple[str, Any]]: ...
diff --git a/third_party/3/typed_ast/ast3.pyi b/third_party/3/typed_ast/ast3.pyi
index 631924cfb..3dac9b2e1 100644
--- a/third_party/3/typed_ast/ast3.pyi
+++ b/third_party/3/typed_ast/ast3.pyi
@@ -12,7 +12,7 @@ def parse(source: Union[str, bytes], filename: Union[str, bytes] = ..., mode: st
 def copy_location(new_node: AST, old_node: AST) -> AST: ...
 def dump(node: AST, annotate_fields: bool = ..., include_attributes: bool = ...) -> str: ...
 def fix_missing_locations(node: AST) -> AST: ...
-def get_docstring(node: AST, clean: bool = ...) -> str: ...
+def get_docstring(node: AST, clean: bool = ...) -> Optional[str]: ...
 def increment_lineno(node: AST, n: int = ...) -> AST: ...
 def iter_child_nodes(node: AST) -> Iterator[AST]: ...
 def iter_fields(node: AST) -> Iterator[typing.Tuple[str, Any]]: ...