| from typing import Callable, TypeVar, overload | |
| from . import _ConverterType | |
| _T = TypeVar("_T") | |
| def pipe(*validators: _ConverterType) -> _ConverterType: ... | |
| def optional(converter: _ConverterType) -> _ConverterType: ... | |
| @overload | |
| def default_if_none(default: _T) -> _ConverterType: ... | |
| @overload | |
| def default_if_none(*, factory: Callable[[], _T]) -> _ConverterType: ... | |
| def to_bool(val: str) -> bool: ... | |