code: public static int cudnnConvolutionBackwardBias(
          cudnnHandle handle, 
          Pointer alpha, 
          cudnnTensorDescriptor dyDesc, 
          Pointer dy, 
          Pointer beta, 
          cudnnTensorDescriptor dbDesc, 
          Pointer db)
      {
          return checkResult(cudnnConvolutionBackwardBiasNative(handle, alpha, dyDesc, dy, beta, dbDesc, db));
      }
docs: Function to compute the bias gradient for batch convolution