docs: private static Set<Class> excludedFromGradientCheckCoverage() {
          List list = Arrays.asList(
                  //Exclude misc
                  DynamicCustomOp.class,
                  EqualsWithEps.class,
                  ConfusionMatrix.class,
                  Eye.class,
                  OneHot.class,
                  BinaryMinimalRelativeError.class,
                  BinaryMinimalRelativeError.class,
                  Histogram.class,
                  InvertPermutation.class,    //Uses integer indices
                  ConfusionMatrix.class,      //Integer indices
                  Linspace.class,             //No input array
                  //Exclude boolean operations:
                  Any.class,
                  All.class,
                  //Exclude index accumulations (index out, not real-valued)
                  FirstIndex.class,
                  IAMax.class,
                  IAMin.class,
                  IMax.class,
                  IMin.class,
                  LastIndex.class,
                  //Exclude Random ops
                  RandomStandardNormal.class,
                  DistributionUniform.class,
                  AlphaDropOut.class,
                  BernoulliDistribution.class,
                  BinomialDistribution.class,
                  BinomialDistributionEx.class,
                  Choice.class,
                  DropOut.class,
                  DropOutInverted.class,
                  GaussianDistribution.class,
                  LogNormalDistribution.class,
                  ProbablisticMerge.class,
                  Range.class,
                  TruncatedNormalDistribution.class,
                  UniformDistribution.class,
                  //Other ops we don't intend to be differentiable (only used as part of backprop, etc).
                  // But we still want a forward/check for these
                  Col2Im.class,
                  NormalizeMoments.class,  //In principle differentiable. In practice: doesn't make any sense to do so!
                  CumProdBp.class,
                  CumSumBp.class,
                  DotBp.class,
                  MaxBp.class,
                  MeanBp.class,
                  MinBp.class,
                  Norm1Bp.class,
                  Norm2Bp.class,
                  NormMaxBp.class,
                  ProdBp.class,
                  StandardDeviationBp.class,
                  SumBp.class,
                  VarianceBp.class
          );
  
          return new HashSet<>(list);
      }