code: def convert_custom(net, node, module, builder):
      
      input_name, output_name = _get_input_output_name(net, node)
      name = node['name']
      param = _get_attr(node)
      if param['op_type'] == 'special-darknet-maxpool':
          _add_pooling.add_pooling_with_padding_types(
              builder=builder,
              name=name,
              height=2,
              width=2,
              stride_height=1,
              stride_width=1,
              layer_type='MAX',
              padding_type='SAME',
              is_global=False,
              same_padding_asymmetry_mode='BOTTOM_RIGHT_HEAVY',
              input_name=input_name,
              output_name=output_name
          )
      else:
          raise TypeError("MXNet layer of type Custom is not supported.")
docs: Convert highly specific ops