code: def __init__(self, loss_weight=1.0):
      super(SSODFCOSLoss, self).__init__()
      self.loss_weight = loss_weight
  
file_path: PaddleDetection/ppdet/modeling/ssod/losses.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from ppdet.core.workspace import register
  from ppdet.modeling.losses.iou_loss import GIoULoss
  from .utils import QFLv2
  from ppdet.utils.logger import setup_logger
label_desc: Use image node_id 1 to create a new SSODFCOSLoss object from inherited base classes: nn with example: obj = SSODFCOSLoss(loss_weight)