code: def forward(self, x):
      return x, self.conv(x)
  
imports: import torch.nn
  import MinkowskiEngine
  from .common import ConvType, NormType
  from torch_points3d.utils.config import is_list
label_desc: Use image node_id 3 for calling the BaseResBlock obj's underlying member method code with example usage: obj.forward(x) and returns: x,  self