code: def __call__(self, pretrained: bool = True) -> "MMDetBackboneConfig":
      self.pretrained = pretrained
      return self
  
file_path: icevision/icevision/models/mmdet/utils.py
imports: from numpy import False_
  from icevision.imports import *
  from icevision.utils import *
  from icevision.models.backbone_config import BackboneConfig
  from icevision.models.mmdet.download_configs import download_mmdet_configs
  from mmdet.models.detectors import *
  from mmcv import Config
  from mmdet.models.backbones.ssd_vgg import SSDVGG
  from mmdet.models.backbones.csp_darknet import CSPDarknet
  from mmdet.models.backbones.swin import SwinTransformer
  from mmdet.models.backbones.hourglass import HourglassNet
label_desc: Use image node_id 2 for calling the MMDetBackboneConfig obj's underlying member method code with example usage: obj.__call__(pretrained) and returns: self