code: def forward(self, x):
      res_layer = getattr(self, f"layer{self.stage + 1}")
      out = res_layer(x)
      return out
  
file_path: insightface/detection/scrfd/mmdet/models/roi_heads/shared_heads/res_layer.py
imports: import torch.nn
  from mmcv.cnn import constant_init, kaiming_init
  from mmcv.runner import auto_fp16, load_checkpoint
  from mmdet.models.backbones import ResNet
  from mmdet.models.builder import SHARED_HEADS
  from mmdet.models.utils import ResLayer
  from mmdet.utils import get_root_logger
label_desc: Use image node_id 3 for calling the ResLayer obj's underlying member method code with example usage: obj.forward(x) and returns: out