from types import FrameType, TracebackType
from typing import IO, Any, Callable, Optional, Text

_ExcInfo = tuple[Optional[type[BaseException]], Optional[BaseException], Optional[TracebackType]]

def reset() -> str: ...  # undocumented
def small(text: str) -> str: ...  # undocumented
def strong(text: str) -> str: ...  # undocumented
def grey(text: str) -> str: ...  # undocumented
def lookup(name: str, frame: FrameType, locals: dict[str, Any]) -> tuple[str | None, Any]: ...  # undocumented
def scanvars(
    reader: Callable[[], bytes], frame: FrameType, locals: dict[str, Any]
) -> list[tuple[str, str | None, Any]]: ...  # undocumented
def html(einfo: _ExcInfo, context: int = ...) -> str: ...
def text(einfo: _ExcInfo, context: int = ...) -> str: ...

class Hook:  # undocumented
    def __init__(
        self, display: int = ..., logdir: Text | None = ..., context: int = ..., file: IO[str] | None = ..., format: str = ...
    ) -> None: ...
    def __call__(self, etype: type[BaseException] | None, evalue: BaseException | None, etb: TracebackType | None) -> None: ...
    def handle(self, info: _ExcInfo | None = ...) -> None: ...

def handler(info: _ExcInfo | None = ...) -> None: ...
def enable(display: int = ..., logdir: Text | None = ..., context: int = ..., format: str = ...) -> None: ...
