code: def __init__(self, weight=1000):
      super(DistillYOLOv3Loss, self).__init__()
      self.loss_weight = weight
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import math
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddle import ParamAttr
  from ppdet.core.workspace import register
  from ppdet.modeling import ops
  from ppdet.modeling.losses.iou_loss import GIoULoss
  from ppdet.utils.logger import setup_logger
label_desc: Use image node_id 1 to create a new DistillYOLOv3Loss object from inherited base classes: nn with example: obj = DistillYOLOv3Loss(weight)