nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/convolution/DefaultConvolutionInstance.java
@Override
    public IComplexNDArray convn(IComplexNDArray input, IComplexNDArray kernel, Convolution.Type type, int[] axes) {
        throw new UnsupportedOperationException();
    }
@Override
    public IComplexNDArray convn(IComplexNDArray input, IComplexNDArray kernel, Convolution.Type type, int[] axes) {
        throw new UnsupportedOperationException();
    }
ND Convolution

@param input  the input to op
@param kernel the kernel to op with
@param type   the opType of convolution
@param axes   the axes to do the convolution along
@return the convolution of the given input and kernel