Add __all__ for most modules beginning with 't' (#7373)

stdlib/traceback.pyi

@@ -4,6 +4,28 @@ from types import FrameType, TracebackType
 from typing import IO, Any, Generator, Iterable, Iterator, Mapping, Optional, overload
 from typing_extensions import Literal
 
+__all__ = [
+    "extract_stack",
+    "extract_tb",
+    "format_exception",
+    "format_exception_only",
+    "format_list",
+    "format_stack",
+    "format_tb",
+    "print_exc",
+    "format_exc",
+    "print_exception",
+    "print_last",
+    "print_stack",
+    "print_tb",
+    "clear_frames",
+    "FrameSummary",
+    "StackSummary",
+    "TracebackException",
+    "walk_stack",
+    "walk_tb",
+]
+
 _PT = tuple[str, int, str, Optional[str]]
 
 def print_tb(tb: TracebackType | None, limit: int | None = ..., file: IO[str] | None = ...) -> None: ...