code: def from_config(cls, cfg):
      teacher = create(cfg["teacher"])
      merge_config(cfg)
      student = create(cfg["student"])
      train_cfg = cfg["train_cfg"]
      test_cfg = cfg["test_cfg"]
      RTDETRTransformer = cfg["RTDETRTransformer"]
      return {
          "teacher": teacher,
          "student": student,
          "train_cfg": train_cfg,
          "test_cfg": test_cfg,
          "RTDETRTransformer": RTDETRTransformer,
      }
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from ppdet.core.workspace import register, create, merge_config
  import paddle
  import numpy
  import paddle
  import paddle.nn.functional
  from ppdet.core.workspace import register, create
  from ppdet.utils.logger import setup_logger
  from ppdet.modeling.ssod.utils import filter_invalid
  from .multi_stream_detector import MultiSteamDetector
label_desc: Use image node_id 2 for calling the DETR_SSOD obj's underlying member method code with example usage: obj.from_config(cls, cfg) and returns: dict