docstr: Initialize layers of the head.
docstr_tok: ["Initialize","layers","of","the","head","."]
code: def _init_layers(self):
      """Initialize layers of the head."""
      self._init_cls_convs()
      self._init_reg_convs()
      self._init_predictor()
      self.conv_centerness = nn.Conv2d(
          self.feat_channels, 1, 3, padding=1
      )
      # if self.use_scale:
      self.scales = nn.ModuleList([Scale(1.0) for _ in self.strides])
  
file_path: mmocr/projects/ABCNet/abcnet/model/abcnet_det_head.py
imports: import torch.nn
  from mmcv.cnn import ConvModule, Scale
  from mmdet.models.utils import multi_apply
  from mmocr.models.textdet.heads.base import BaseTextDetHead
  from mmocr.registry import MODELS
label_desc: Use image node_id 2 for calling the ABCNetDetHead obj's underlying member method code with example usage: obj._init_layers() without return types