[_typeshed] Narrow ProfileFunction and TraceFunction to accept only literal event names (#15802)

Author: jonathandung

stdlib/_typeshed/__init__.pyi

@@ -351,10 +351,12 @@ AnyOrLiteralStr = TypeVar("AnyOrLiteralStr", str, bytes, LiteralString)  # noqa:
 StrOrLiteralStr = TypeVar("StrOrLiteralStr", LiteralString, str)  # noqa: Y001
 
 # Objects suitable to be passed to sys.setprofile, threading.setprofile, and similar
-ProfileFunction: TypeAlias = Callable[[FrameType, str, Any], object]
+ProfileFunction: TypeAlias = Callable[[FrameType, Literal["call", "return", "c_call", "c_return", "c_exception"], Any], object]
 
 # Objects suitable to be passed to sys.settrace, threading.settrace, and similar
-TraceFunction: TypeAlias = Callable[[FrameType, str, Any], TraceFunction | None]
+TraceFunction: TypeAlias = Callable[
+    [FrameType, Literal["call", "line", "return", "exception", "opcode"], Any], TraceFunction | None
+]
 
 # experimental
 # Might not work as expected for pyright, see