code: def __init__(self, num_classes=80, cot_scale=1, cot_lambda=1):
      super(COTLoss, self).__init__()
      self.cot_scale = cot_scale
      self.cot_lambda = cot_lambda
      self.num_classes = num_classes
  
file_path: PaddleDetection/ppdet/modeling/losses/cot_loss.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
  import numpy
  from ppdet.core.workspace import register
label_desc: Use image node_id 1 to create a new COTLoss object from inherited base classes: nn with example: obj = COTLoss(num_classes, cot_scale, cot_lambda)