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# """
#  Copyright (c) 2018 Intel Corporation
#
#  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 numpy as np

from mo.ops.squeeze import Squeeze
from mo.front.extractor import FrontExtractorOp
from mo.front.onnx.extractors.utils import onnx_attr


class SqueezeFrontExtractor(FrontExtractorOp):
    op = 'Squeeze'
    enabled = True

    @staticmethod
    def extract(node):
        axis = np.array(onnx_attr(node, 'axes', 'ints', default=[]), dtype=np.int64)

        attrs = {
            'squeeze_dims': axis if len(axis) != 0 else None
        }

        # update the attributes of the node
        Squeeze.update_node_stat(node, attrs)
        return __class__.enabled