Issue #9738: Document encodings of AST, compiler, parser and PyRun functions
diff --git a/Include/ast.h b/Include/ast.h
index cc14b7f..a015336 100644
--- a/Include/ast.h
+++ b/Include/ast.h
@@ -4,8 +4,11 @@
extern "C" {
#endif
-PyAPI_FUNC(mod_ty) PyAST_FromNode(const node *, PyCompilerFlags *flags,
- const char *, PyArena *);
+PyAPI_FUNC(mod_ty) PyAST_FromNode(
+ const node *n,
+ PyCompilerFlags *flags,
+ const char *filename, /* decoded from the filesystem encoding */
+ PyArena *arena);
#ifdef __cplusplus
}