import sys

from _typeshed import ReadOnlyBuffer, StrOrBytesPath

from types import TracebackType

from typing import Final, TypeVar, final, overload, type_check_only

from typing_extensions import Self, TypeAlias

if sys.platform != "win32":

_T = TypeVar("_T")

_KeyType: TypeAlias = str | ReadOnlyBuffer

_ValueType: TypeAlias = str | ReadOnlyBuffer

class error(OSError): ...

library: Final[str]

# Actual typename dbm, not exposed by the implementation

@final

@type_check_only

class _dbm:

def close(self) -> None: ...

if sys.version_info >= (3, 13):

def clear(self) -> None: ...

def __getitem__(self, item: _KeyType) -> bytes: ...

def __setitem__(self, key: _KeyType, value: _ValueType) -> None: ...

def __delitem__(self, key: _KeyType) -> None: ...

def __len__(self) -> int: ...

def __enter__(self) -> Self: ...

def __exit__(

self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None

) -> None: ...

@overload

def get(self, k: _KeyType, /) -> bytes | None: ...

@overload

def get(self, k: _KeyType, default: _T, /) -> bytes | _T: ...

def keys(self) -> list[bytes]: ...

def setdefault(self, k: _KeyType, default: _ValueType = b"", /) -> bytes: ...

# This isn't true, but the class can't be instantiated. See #13024

__new__: None # type: ignore[assignment]

__init__: None # type: ignore[assignment]

if sys.version_info >= (3, 11):

def open(filename: StrOrBytesPath, flags: str = "r", mode: int = 0o666, /) -> _dbm: ...

else:

def open(filename: str, flags: str = "r", mode: int = 0o666, /) -> _dbm: ...