/*
 *  ******************************************************************************
 *  *
 *  *
 *  * This program and the accompanying materials are made available under the
 *  * terms of the Apache License, Version 2.0 which is available at
 *  * https://www.apache.org/licenses/LICENSE-2.0.
 *  *
 *  *  See the NOTICE file distributed with this work for additional
 *  *  information regarding copyright ownership.
 *  * 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.
 *  *
 *  * SPDX-License-Identifier: Apache-2.0
 *  *****************************************************************************
 */

package org.nd4j.imports.converters;

import lombok.extern.slf4j.Slf4j;
import org.nd4j.autodiff.functions.DifferentialFunction;
import org.nd4j.imports.NoOpNameFoundException;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
public class ImportClassMapping {

    private static final Map<String, DifferentialFunction> OP_NAME_MAP = new HashMap<>();
    private static final Map<String, DifferentialFunction> TF_OP_NAME_MAP = new HashMap<>();
    private static final Map<String, DifferentialFunction> ONNX_OP_NAME_MAP = new HashMap<>();

    private static final List<Class<?>> fnClasses = Arrays.<Class<?>>asList(
            org.nd4j.linalg.api.ops.DynamicCustomOp.class,
            org.nd4j.linalg.api.ops.NoOp.class,
            org.nd4j.linalg.api.ops.impl.updaters.SgdUpdater.class,
            org.nd4j.linalg.api.ops.impl.updaters.RmsPropUpdater.class,
            org.nd4j.linalg.api.ops.impl.updaters.NesterovsUpdater.class,
            org.nd4j.linalg.api.ops.impl.updaters.NadamUpdater.class,
            org.nd4j.linalg.api.ops.impl.updaters.AmsGradUpdater.class,
            org.nd4j.linalg.api.ops.impl.updaters.AdamUpdater.class,
            org.nd4j.linalg.api.ops.impl.updaters.AdaMaxUpdater.class,
            org.nd4j.linalg.api.ops.impl.updaters.AdaGradUpdater.class,
            org.nd4j.linalg.api.ops.impl.updaters.AdaDeltaUpdater.class,
            org.nd4j.linalg.api.ops.custom.BarnesEdgeForces.class,
            org.nd4j.linalg.api.ops.custom.BarnesHutGains.class,
            org.nd4j.linalg.api.ops.custom.BarnesHutSymmetrize.class,
            org.nd4j.linalg.api.ops.custom.KnnMinDistance.class,
            org.nd4j.linalg.api.ops.custom.SpTreeCell.class,
            org.nd4j.linalg.api.ops.custom.Flatten.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BiasAdd.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BiasAddGrad.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastAMax.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastAMin.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastAddOp.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastCopyOp.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastDivOp.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastGradientArgs.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastMax.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastMin.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastMulOp.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastRDivOp.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastRSubOp.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastSubOp.class,
            org.nd4j.linalg.api.ops.impl.broadcast.BroadcastTo.class,
            org.nd4j.linalg.api.ops.compression.EncodeBitmap.class,
            org.nd4j.linalg.api.ops.compression.DecodeBitmap.class,
            org.nd4j.linalg.api.ops.compression.EncodeThreshold.class,
            org.nd4j.linalg.api.ops.compression.DecodeThreshold.class,
            org.nd4j.linalg.api.ops.impl.shape.Create.class,
            org.nd4j.linalg.api.ops.impl.broadcast.bool.BroadcastEqualTo.class,
            org.nd4j.linalg.api.ops.impl.broadcast.bool.BroadcastGreaterThan.class,
            org.nd4j.linalg.api.ops.impl.broadcast.bool.BroadcastGreaterThanOrEqual.class,
            org.nd4j.linalg.api.ops.impl.broadcast.bool.BroadcastLessThan.class,
            org.nd4j.linalg.api.ops.impl.broadcast.bool.BroadcastLessThanOrEqual.class,
            org.nd4j.linalg.api.ops.impl.broadcast.bool.BroadcastNotEqual.class,
            org.nd4j.linalg.api.ops.impl.controlflow.Select.class,
            org.nd4j.linalg.api.ops.impl.controlflow.Where.class,
            org.nd4j.linalg.api.ops.impl.controlflow.WhereNumpy.class,
            org.nd4j.linalg.api.ops.impl.controlflow.compat.Enter.class,
            org.nd4j.linalg.api.ops.impl.controlflow.compat.While.class,
            org.nd4j.linalg.api.ops.impl.controlflow.compat.Exit.class,
            org.nd4j.linalg.api.ops.impl.controlflow.compat.LoopCond.class,
            org.nd4j.linalg.api.ops.impl.controlflow.compat.Merge.class,
            org.nd4j.linalg.api.ops.impl.controlflow.compat.NextIteration.class,
            org.nd4j.linalg.api.ops.impl.controlflow.compat.StopGradient.class,
            org.nd4j.linalg.api.ops.impl.controlflow.compat.Switch.class,
            org.nd4j.linalg.api.ops.impl.grid.FreeGridOp.class,
            org.nd4j.linalg.api.ops.impl.image.CropAndResize.class,
            org.nd4j.linalg.api.ops.impl.image.ExtractImagePatches.class,
            org.nd4j.linalg.api.ops.impl.image.ImageResize.class,
            org.nd4j.linalg.api.ops.impl.image.NonMaxSuppression.class,
            org.nd4j.linalg.api.ops.impl.image.NonMaxSuppressionV3.class,
            org.nd4j.linalg.api.ops.impl.image.NonMaxSuppressionWithOverlaps.class,
            org.nd4j.linalg.api.ops.impl.image.ResizeBilinear.class,
            org.nd4j.linalg.api.ops.impl.image.ResizeBicubic.class,
            org.nd4j.linalg.api.ops.impl.image.ResizeNearestNeighbor.class,
            org.nd4j.linalg.api.ops.impl.image.ResizeArea.class,
            org.nd4j.linalg.api.ops.impl.indexaccum.FirstIndex.class,
            org.nd4j.linalg.api.ops.impl.indexaccum.LastIndex.class,
            org.nd4j.linalg.api.ops.impl.indexaccum.custom.ArgMax.class,
            org.nd4j.linalg.api.ops.impl.indexaccum.custom.ArgMin.class,
            org.nd4j.linalg.api.ops.impl.indexaccum.custom.ArgAmax.class,
            org.nd4j.linalg.api.ops.impl.indexaccum.custom.ArgAmin.class,
            org.nd4j.linalg.api.ops.impl.layers.ExternalErrorsFunction.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.AvgPooling2D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.AvgPooling3D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.BatchNorm.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.BatchNormDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Col2Im.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Conv1D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Conv1DDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Conv2D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Conv2DDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Conv3D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Conv3DDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DeConv2D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DeConv2DDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DeConv2DTF.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DeConv3D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DeConv3DTF.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DeConv3DDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DepthToSpace.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DepthwiseConv2D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.DepthwiseConv2DBp.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Im2col.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Im2colBp.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.LocalResponseNormalization.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.LocalResponseNormalizationDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.MaxPooling2D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.MaxPooling3D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.MaxPoolWithArgmax.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Pooling2D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Pooling2DDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Pooling3DDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.SConv2D.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.SConv2DDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.SpaceToDepth.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Upsampling2d.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Upsampling3d.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Upsampling3dBp.class,
            org.nd4j.linalg.api.ops.impl.layers.convolution.Upsampling2dDerivative.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.GRU.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.GRUBp.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.GRUCell.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.LSTMBlockCell.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.LSTMCell.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.LSTMLayer.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.LSTMLayerBp.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.LSTMBlock.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.SRU.class,
            org.nd4j.linalg.api.ops.impl.layers.recurrent.SRUCell.class,
            org.nd4j.linalg.api.ops.impl.loss.AbsoluteDifferenceLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.CosineDistanceLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.HingeLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.HuberLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.L2Loss.class,
            org.nd4j.linalg.api.ops.impl.loss.LogLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.LogPoissonLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.MeanPairwiseSquaredErrorLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.MeanSquaredErrorLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.SigmoidCrossEntropyLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.SoftmaxCrossEntropyLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.SoftmaxCrossEntropyWithLogitsLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.SparseSoftmaxCrossEntropyLossWithLogits.class,
            org.nd4j.linalg.api.ops.impl.loss.WeightedCrossEntropyLoss.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.AbsoluteDifferenceLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.CosineDistanceLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.HingeLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.HuberLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.LogLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.LogPoissonLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.MeanPairwiseSquaredErrorLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.MeanSquaredErrorLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.SigmoidCrossEntropyLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.SoftmaxCrossEntropyLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.SoftmaxCrossEntropyWithLogitsLossBp.class,
            org.nd4j.linalg.api.ops.impl.loss.bp.SparseSoftmaxCrossEntropyLossWithLogitsBp.class,
            org.nd4j.linalg.api.ops.impl.meta.InvertedPredicateMetaOp.class,
            org.nd4j.linalg.api.ops.impl.meta.PostulateMetaOp.class,
            org.nd4j.linalg.api.ops.impl.meta.PredicateMetaOp.class,
            org.nd4j.linalg.api.ops.impl.meta.ReduceMetaOp.class,
            org.nd4j.linalg.api.ops.impl.nlp.CbowRound.class,
            org.nd4j.linalg.api.ops.impl.nlp.SkipGramRound.class,
            org.nd4j.linalg.api.ops.impl.reduce.HashCode.class,
            org.nd4j.linalg.api.ops.impl.reduce.Mmul.class,
            org.nd4j.linalg.api.ops.impl.reduce.MmulBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.Moments.class,
            org.nd4j.linalg.api.ops.impl.reduce.NormalizeMoments.class,
            org.nd4j.linalg.api.ops.impl.reduce.SufficientStatistics.class,
            org.nd4j.linalg.api.ops.impl.reduce.TensorMmul.class,
            org.nd4j.linalg.api.ops.impl.reduce.ZeroFraction.class,
            org.nd4j.linalg.api.ops.impl.reduce.bool.All.class,
            org.nd4j.linalg.api.ops.impl.reduce.bool.Any.class,
            org.nd4j.linalg.api.ops.impl.reduce.bool.IsInf.class,
            org.nd4j.linalg.api.ops.impl.reduce.bool.IsNaN.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.CumProdBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.CumSumBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.DotBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.MaxBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.MeanBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.MinBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.Norm1Bp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.Norm2Bp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.NormMaxBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.ProdBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.SquaredNormBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.StandardDeviationBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.SumBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.VarianceBp.class,
            org.nd4j.linalg.api.ops.impl.reduce.custom.BatchMmul.class,
            org.nd4j.linalg.api.ops.impl.reduce.custom.LogSumExp.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.AMean.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.Entropy.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.LogEntropy.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.Mean.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.Norm1.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.Norm2.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.NormMax.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.ShannonEntropy.class,
            org.nd4j.linalg.api.ops.impl.reduce.floating.SquaredNorm.class,
            org.nd4j.linalg.api.ops.impl.reduce.longer.CountNonZero.class,
            org.nd4j.linalg.api.ops.impl.reduce.longer.CountZero.class,
            org.nd4j.linalg.api.ops.impl.reduce.longer.MatchCondition.class,
            org.nd4j.linalg.api.ops.impl.reduce.same.AMax.class,
            org.nd4j.linalg.api.ops.impl.reduce.same.AMin.class,
            org.nd4j.linalg.api.ops.impl.reduce.same.ASum.class,
            org.nd4j.linalg.api.ops.impl.reduce.same.Max.class,
            org.nd4j.linalg.api.ops.impl.reduce.same.Min.class,
            org.nd4j.linalg.api.ops.impl.reduce.same.Prod.class,
            org.nd4j.linalg.api.ops.impl.reduce.same.Sum.class,
            org.nd4j.linalg.api.ops.impl.reduce3.CosineDistance.class,
            org.nd4j.linalg.api.ops.impl.reduce3.CosineSimilarity.class,
            org.nd4j.linalg.api.ops.impl.reduce3.Dot.class,
            org.nd4j.linalg.api.ops.impl.reduce3.EqualsWithEps.class,
            org.nd4j.linalg.api.ops.impl.reduce3.EuclideanDistance.class,
            org.nd4j.linalg.api.ops.impl.reduce3.HammingDistance.class,
            org.nd4j.linalg.api.ops.impl.reduce3.JaccardDistance.class,
            org.nd4j.linalg.api.ops.impl.reduce3.ManhattanDistance.class,
            org.nd4j.linalg.api.ops.impl.scalar.LeakyReLU.class,
            org.nd4j.linalg.api.ops.impl.scalar.LogX.class,
            org.nd4j.linalg.api.ops.impl.scalar.Pow.class,
            org.nd4j.linalg.api.ops.impl.scalar.PowDerivative.class,
            org.nd4j.linalg.api.ops.impl.reduce.bp.PowBp.class,
            org.nd4j.linalg.api.ops.impl.scalar.RectifiedLinear.class,
            org.nd4j.linalg.api.ops.impl.scalar.RectifiedLinearDerivative.class,
            org.nd4j.linalg.api.ops.impl.transforms.custom.ThresholdRelu.class,
            org.nd4j.linalg.api.ops.impl.scalar.Relu6.class,
            org.nd4j.linalg.api.ops.impl.scalar.PRelu.class,
            org.nd4j.linalg.api.ops.impl.scalar.ReplaceNans.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarAdd.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarDivision.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarFMod.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarMax.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarMin.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarMultiplication.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarRemainder.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarReverseDivision.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarReverseSubtraction.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarSet.class,
            org.nd4j.linalg.api.ops.impl.scalar.ScalarSubtraction.class,
            org.nd4j.linalg.api.ops.impl.scalar.Step.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarAnd.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarEps.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarEquals.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarGreaterThan.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarGreaterThanOrEqual.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarLessThan.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarLessThanOrEqual.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarNot.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarNotEquals.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarOr.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarSetValue.class,
            org.nd4j.linalg.api.ops.impl.scalar.comparison.ScalarXor.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterAdd.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterDiv.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterMax.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterMin.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterMul.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterNd.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterNdAdd.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterNdSub.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterNdUpdate.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterSub.class,
            org.nd4j.linalg.api.ops.impl.scatter.ScatterUpdate.class,
            org.nd4j.linalg.api.ops.impl.shape.ApplyGradientDescent.class,
            org.nd4j.linalg.api.ops.impl.shape.BroadcastDynamicShape.class,
            org.nd4j.linalg.api.ops.impl.shape.Concat.class,
            org.nd4j.linalg.api.ops.impl.shape.ConfusionMatrix.class,
            org.nd4j.linalg.api.ops.impl.shape.Cross.class,
            org.nd4j.linalg.api.ops.impl.shape.Diag.class,
            org.nd4j.linalg.api.ops.impl.shape.DiagPart.class,
            org.nd4j.linalg.api.ops.impl.shape.ExpandDims.class,
            org.nd4j.linalg.api.ops.impl.shape.Eye.class,
            org.nd4j.linalg.api.ops.impl.shape.Flatten2D.class,
            org.nd4j.linalg.api.ops.impl.shape.Gather.class,
            org.nd4j.linalg.api.ops.impl.shape.GatherNd.class,
            org.nd4j.linalg.api.ops.impl.shape.Linspace.class,
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            org.nd4j.linalg.api.ops.impl.transforms.strict.GELU.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.GELUDerivative.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.HardSigmoid.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.HardTanh.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Log.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Log1p.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.LogSigmoid.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Mish.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.MishDerivative.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.PreciseGELU.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.PreciseGELUDerivative.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.RationalTanh.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.RectifiedTanh.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Rint.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.SELU.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.SetRange.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Sigmoid.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.SigmoidDerivative.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Sin.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Sinh.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.SoftPlus.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.SoftSign.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Stabilize.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Swish.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.SwishDerivative.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Tan.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.TanDerivative.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.Tanh.class,
            org.nd4j.linalg.api.ops.impl.transforms.strict.TanhDerivative.class,
            org.nd4j.linalg.api.ops.persistence.RestoreV2.class,
            org.nd4j.linalg.api.ops.persistence.SaveV2.class,
            org.nd4j.linalg.api.ops.random.compat.RandomStandardNormal.class,
            org.nd4j.linalg.api.ops.random.custom.DistributionUniform.class,
            org.nd4j.linalg.api.ops.random.custom.RandomBernoulli.class,
            org.nd4j.linalg.api.ops.random.custom.RandomExponential.class,
            org.nd4j.linalg.api.ops.random.custom.RandomNormal.class,
            org.nd4j.linalg.api.ops.random.custom.RandomGamma.class,
            org.nd4j.linalg.api.ops.random.custom.RandomPoisson.class,
            org.nd4j.linalg.api.ops.random.custom.RandomShuffle.class,
            org.nd4j.linalg.api.ops.random.impl.AlphaDropOut.class,
            org.nd4j.linalg.api.ops.random.impl.BernoulliDistribution.class,
            org.nd4j.linalg.api.ops.random.impl.BinomialDistribution.class,
            org.nd4j.linalg.api.ops.random.impl.BinomialDistributionEx.class,
            org.nd4j.linalg.api.ops.random.impl.Choice.class,
            org.nd4j.linalg.api.ops.random.impl.DropOut.class,
            org.nd4j.linalg.api.ops.random.impl.DropOutInverted.class,
            org.nd4j.linalg.api.ops.random.impl.GaussianDistribution.class,
            org.nd4j.linalg.api.ops.random.impl.Linspace.class,
            org.nd4j.linalg.api.ops.random.impl.LogNormalDistribution.class,
            org.nd4j.linalg.api.ops.random.impl.ProbablisticMerge.class,
            org.nd4j.linalg.api.ops.random.impl.Range.class,
            org.nd4j.linalg.api.ops.random.impl.TruncatedNormalDistribution.class,
            org.nd4j.linalg.api.ops.random.impl.UniformDistribution.class,
            org.nd4j.linalg.api.ops.util.PrintAffinity.class,
            org.nd4j.linalg.api.ops.util.PrintVariable.class,
            org.nd4j.linalg.api.ops.compat.CompatSparseToDense.class,
            org.nd4j.linalg.api.ops.compat.CompatStringSplit.class,
            org.nd4j.linalg.api.ops.custom.AdjustContrast.class,
            org.nd4j.linalg.api.ops.custom.HsvToRgb.class,
            org.nd4j.linalg.api.ops.custom.RgbToHsv.class,
            org.nd4j.linalg.api.ops.custom.RgbToYiq.class,
            org.nd4j.linalg.api.ops.custom.RgbToGrayscale.class,
            org.nd4j.linalg.api.ops.custom.YiqToRgb.class,
            org.nd4j.linalg.api.ops.custom.RgbToYuv.class,
            org.nd4j.linalg.api.ops.custom.YuvToRgb.class,
            org.nd4j.linalg.api.ops.custom.BitCast.class,
            org.nd4j.linalg.api.ops.custom.CompareAndBitpack.class,
            org.nd4j.linalg.api.ops.custom.DivideNoNan.class,
            org.nd4j.linalg.api.ops.custom.DrawBoundingBoxes.class,
            org.nd4j.linalg.api.ops.custom.FakeQuantWithMinMaxVarsPerChannel.class,
            org.nd4j.linalg.api.ops.custom.AdjustSaturation.class,
            org.nd4j.linalg.api.ops.custom.AdjustHue.class,
            org.nd4j.linalg.api.ops.custom.FusedBatchNorm.class,
            org.nd4j.linalg.api.ops.custom.BetaInc.class,
            org.nd4j.linalg.api.ops.custom.MatrixBandPart.class,
            org.nd4j.linalg.api.ops.custom.Polygamma.class,
            org.nd4j.linalg.api.ops.custom.Lgamma.class,
            org.nd4j.linalg.api.ops.custom.RandomCrop.class,
            org.nd4j.linalg.api.ops.custom.Roll.class,
            org.nd4j.linalg.api.ops.custom.ToggleBits.class,
            org.nd4j.linalg.api.ops.custom.Tri.class,
            org.nd4j.linalg.api.ops.custom.Triu.class,
            org.nd4j.linalg.api.ops.custom.TriuBp.class,
            org.nd4j.linalg.api.ops.custom.Igamma.class,
            org.nd4j.linalg.api.ops.custom.Igammac.class,
            org.nd4j.linalg.api.ops.custom.Digamma.class,
            org.nd4j.linalg.api.ops.custom.Lu.class,
            org.nd4j.linalg.api.ops.custom.TriangularSolve.class,
            org.nd4j.linalg.api.ops.custom.LinearSolve.class,
            org.nd4j.linalg.api.ops.custom.Lstsq.class,
            org.nd4j.linalg.api.ops.impl.transforms.custom.Qr.class,
            org.nd4j.linalg.api.ops.custom.Logdet.class
    );

    static {
        for(Class<?> c : fnClasses){
            try{
                DifferentialFunction df = (DifferentialFunction) c.newInstance();

                String opName = df.opName();
                OP_NAME_MAP.put(opName, df);

                //TF import mapping
                try{
                    String[] tfNames = df.tensorflowNames();
                    for(String s : tfNames){
                        if(TF_OP_NAME_MAP.containsKey(s)){
                            log.warn("Duplicate TF op mapping found for op {}: {} vs {}", s, TF_OP_NAME_MAP.get(s).getClass().getName(), df.getClass().getName());
                        }
                        TF_OP_NAME_MAP.put(s, df);
                    }
                } catch (NoOpNameFoundException e){
                    //Ignore
                }

                //ONNX import mapping
                try{
                    String[] tfNames = df.onnxNames();
                    for(String s : tfNames){
                        if(ONNX_OP_NAME_MAP.containsKey(s)){
                            log.warn("Duplicate ONNX op mapping found for op {}: {} vs {}", s, ONNX_OP_NAME_MAP.get(s).getClass().getName(), df.getClass().getName());
                        }
                        ONNX_OP_NAME_MAP.put(s, df);
                    }
                } catch (NoOpNameFoundException e){
                    //Ignore
                }

            } catch (Throwable t){
                throw new RuntimeException(t);
            }
        }
    }

    public static List<Class<?>> getOpClasses(){
        return fnClasses;
    }

    public static Map<String,DifferentialFunction> getTFOpMappingFunctions(){
        return TF_OP_NAME_MAP;
    }

    public static Map<String,DifferentialFunction> getOnnxOpMappingFunctions(){
        return ONNX_OP_NAME_MAP;
    }

    public static Map<String,DifferentialFunction> getOpNameMapping(){
        return OP_NAME_MAP;
    }

}
