def METHOD_NAME(self, gt_labels):
    """Add ground truth as assigned results.
    Args:
        gt_labels (torch.Tensor): Labels of gt boxes
    """
    self_inds = torch.arange(
        1, len(gt_labels) + 1, dtype=torch.long, device=gt_labels.device)
    self.gt_inds = torch.cat([self_inds, self.gt_inds])
    self.max_overlaps = torch.cat(
        [self.max_overlaps.new_ones(len(gt_labels)), self.max_overlaps])
    self.labels = torch.cat([gt_labels, self.labels])