# Copyright 2018 Recruit Communications Co., Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import abc
import six
from pyqubo.core.express import UserDefinedExpress


@six.add_metaclass(abc.ABCMeta)
class Integer(UserDefinedExpress):
    """Binary encoded integer
    """

    @property
    @abc.abstractmethod
    def interval(self):  # pragma: no cover
        """
        (int, int): Tuple of minimum value and maximum value.
        """
        pass
