# This code is part of Qiskit.
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# (C) Copyright IBM 2017, 2019.
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# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
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# Copyright 2019 Andrew M. Childs, Eddie Schoute, Cem M. Unsal
#
# 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
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#     http://www.apache.org/licenses/LICENSE-2.0
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"""The permutation modules contains some functions for permuting on architectures given a mapping.

A permutation function takes in a graph and a permutation of graph nodes,
and returns a sequence of SWAPs that implements that permutation on the graph.
"""

from .token_swapper import ApproximateTokenSwapper