    def forward(self,
                feats: Tuple[Tensor],
                rois: Tensor,
                roi_scale_factor: Optional[float] = None) -> Tensor:
        """Extractor ROI feats.

        Args:
            feats (Tuple[Tensor]): Multi-scale features.
            rois (Tensor): RoIs with the shape (n, 5) where the first
                column indicates batch id of each RoI.
            roi_scale_factor (Optional[float]): RoI scale factor.
                Defaults to None.

        Returns:
            Tensor: RoI feature.
        """
        pass
Extractor ROI feats.

Args:
feats (Tuple[Tensor]): Multi-scale features.
rois (Tensor): RoIs with the shape (n, 5) where the first
column indicates batch id of each RoI.
roi_scale_factor (Optional[float]): RoI scale factor.
Defaults to None.

Returns:
Tensor: RoI feature.
projects/glamm/models/region_encoder.py