code: def __call__(self, pretrained: bool = True) -> "MMSegBackboneConfig":
      self.pretrained = pretrained
      return self
  
file_path: icevision/icevision/models/mmseg/utils.py
imports: from icevision.imports import *
  from icevision.utils import *
  from icevision.models.backbone_config import BackboneConfig
  from icevision.core.exceptions import PreTrainedVariantNotFound
  from icevision.models.mmseg.download_configs import download_mmseg_configs
  from mmseg.models.segmentors import *
  from mmcv import Config
label_desc: Use image node_id 2 for calling the MMSegBackboneConfig obj's underlying member method code with example usage: obj.__call__(pretrained) and returns: self