bazarr/libs/bidict/_bidict.py

# -*- coding: utf-8 -*-
# Copyright 2009-2021 Joshua Bronson. All Rights Reserved.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.


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"""Provide :class:`bidict`."""

import typing as _t

from ._delegating import _DelegatingBidict
from ._mut import MutableBidict
from ._typing import KT, VT


class bidict(_DelegatingBidict[KT, VT], MutableBidict[KT, VT]):
    """Base class for mutable bidirectional mappings."""

    __slots__ = ()

    if _t.TYPE_CHECKING:
        @property
        def inverse(self) -> 'bidict[VT, KT]': ...


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