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#------------------------------------------------------------------------------
# Copyright (c) 2013-2025, Nucleic Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file LICENSE, distributed with this software.
#------------------------------------------------------------------------------
from abc import ABCMeta
import kiwisolver as kiwi
class LinearSymbolic(object, metaclass=ABCMeta):
""" An abstract base class for testing linear symbolic interfaces.
"""
LinearSymbolic.register(kiwi.Variable)
LinearSymbolic.register(kiwi.Term)
LinearSymbolic.register(kiwi.Expression)
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