diff --git a/third_party/2/gflags.pyi b/third_party/2/gflags.pyi
index 88eb2578f..51ed30421 100644
--- a/third_party/2/gflags.pyi
+++ b/third_party/2/gflags.pyi
@@ -85,6 +85,8 @@ class FlagValues:
     WriteHelpInXMLFormat = write_help_in_xml_format
     # TODO validator: gflags_validators.Validator
     def AddValidator(self, validator: Any) -> None: ...
+    def is_parsed(self) -> bool: ...
+    IsParsed = is_parsed
 
 FLAGS: FlagValues