class_docstr: TOOD: Task-aligned One-stage Object Detection, see https://arxiv.org/abs/2108.07755
  Args:
      backbone (nn.Layer): backbone instance
      neck (nn.Layer): 'FPN' instance
      head (nn.Layer): 'TOODHead' instance
code: def get_loss(self):
      return self._forward()
  
file_path: PaddleDetection/ppdet/modeling/architectures/tood.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from ppdet.core.workspace import register, create
  from .meta_arch import BaseArch
label_desc: Use image node_id 4 for calling the TOOD obj's underlying member method code with example usage: obj.get_loss() and returns: self