code: def init_weights(self):
      for m in self.cls_layers.parameters():
          normal_(m, mean=0.0, std=0.001)
      for m in self.reg_layers.parameters():
          normal_(m, mean=0.0, std=0.001)
  
imports: import math
  import paddle
  import numpy
  import paddle.nn
  import paddle.nn.functional
  from ppdet.core.workspace import register
  from ppdet.modeling.initializer import normal_
  from ppdet.modeling.lane_utils import Lane
  from ppdet.modeling.losses import line_iou
  from ppdet.modeling.clrnet_utils import ROIGather, LinearModule, SegDecoder
label_desc: Use image node_id 2 for calling the CLRHead obj's underlying member method code with example usage: obj.init_weights() without return types