I can’t find anywhere the implementation of this code:
  

      github.com
  

  
    pytorch/vision/blob/68f511eb3510ab6fffd258c8aaeffdc1a574212c/torchvision/ops/roi_align.py#L61 1



      
      
                  Tensor[K, C, output_size[0], output_size[1]]: The pooled RoIs.
              """
              if not torch.jit.is_scripting() and not torch.jit.is_tracing():
                  _log_api_usage_once(roi_align)
              _assert_has_ops()
              check_roi_boxes_shape(boxes)
              rois = boxes
              output_size = _pair(output_size)
              if not isinstance(rois, torch.Tensor):
                  rois = convert_boxes_to_roi_format(rois)
              return torch.ops.torchvision.roi_align(
                  input, rois, spatial_scale, output_size[0], output_size[1], sampling_ratio, aligned
              )
          
          

          
class RoIAlign(nn.Module):
              """
              See :func:`roi_align`.
              """
          
          
    def __init__(