from enum import Enum

from types import ModuleType

class BackendFilter(Enum):

INTERACTIVE = 0

NON_INTERACTIVE = 1

class BackendRegistry:

_BUILTIN_BACKEND_TO_GUI_FRAMEWORK: dict[str, str]

_GUI_FRAMEWORK_TO_BACKEND: dict[str, str]

_loaded_entry_points: bool

_backend_to_gui_framework: dict[str, str]

_name_to_module: dict[str, str]

def _backend_module_name(self, backend: str) -> str: ...

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

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

def _get_gui_framework_by_loading(self, backend: str) -> str: ...

def _read_entry_points(self) -> list[tuple[str, str]]: ...

def _validate_and_store_entry_points(self, entries: list[tuple[str, str]]) -> None: ...

def backend_for_gui_framework(self, framework: str) -> str | None: ...

def is_valid_backend(self, backend: str) -> bool: ...

def list_all(self) -> list[str]: ...

def list_builtin(self, filter_: BackendFilter | None) -> list[str]: ...

def list_gui_frameworks(self) -> list[str]: ...

def load_backend_module(self, backend: str) -> ModuleType: ...

def resolve_backend(self, backend: str | None) -> tuple[str, str | None]: ...

def resolve_gui_or_backend(self, gui_or_backend: str | None) -> tuple[str, str | None]: ...

backend_registry: BackendRegistry