code: def __init__(self, loc_loss_type="iou"):
      super(IOULoss, self).__init__()
      self.loc_loss_type = loc_loss_type
  
imports: import torch
  from torch import nn
label_desc: Use image node_id 1 to create a new IOULoss object from inherited base classes: nn with example: obj = IOULoss(loc_loss_type)