class_docstr: ATSS head with visual-language fusion module.
  
  Args:
      early_fuse (bool): Whether to fuse visual and language features
          Defaults to False.
      use_checkpoint (bool): Whether to use checkpoint. Defaults to False.
      num_dyhead_blocks (int): Number of dynamic head blocks. Defaults to 6.
      lang_model_name (str): Name of the language model.
          Defaults to 'bert-base-uncased'.
class_docstr_tok: ["ATSS","head","with","visual-language","fusion","module",".","Args",":","early_fuse","(","bool",")",":","Whether","to","fuse","visual","and","language","features","Defaults","to","False",".","use_checkpoint","(","bool",")",":","Whether","to","use","checkpoint",".","Defaults","to","False",".","num_dyhead_blocks","(","int",")",":","Number","of","dynamic","head","blocks",".","Defaults","to","6.","lang_model_name","(","str",")",":","Name","of","the","language","model",".","Defaults","to","'bert-base-uncased","'","."]
docstr: No need to initialize the ATSS head layer.
docstr_tok: ["No","need","to","initialize","the","ATSS","head","layer","."]
code: def _init_layers(self) -> None:
      """No need to initialize the ATSS head layer."""
      pass
  
imports: import copy
  import math
  from typing import Callable, List, Optional, Sequence, Tuple, Union
  import torch
  import torch.nn
  import torch.nn.functional
  from mmcv.cnn import Scale
  from mmcv.ops.modulated_deform_conv import ModulatedDeformConv2d
  from mmengine.config import ConfigDict
  from mmengine.model import BaseModel
  from mmengine.structures import InstanceData
  from torch import Tensor
  from mmdet.registry import MODELS
  from mmdet.structures.bbox import cat_boxes
  from mmdet.utils import InstanceList, OptInstanceList, reduce_mean
  from ..utils import BertEncoderLayer, VLFuse, filter_scores_and_topk, permute_and_flatten, select_single_mlvl, unpack_gt_instances
  from ..utils.vlfuse_helper import MAX_CLAMP_VALUE
  from .atss_head import ATSSHead
label_desc: Use image node_id 2 for calling the ATSSVLFusionHead obj's underlying member method code with example usage: obj._init_layers() without return types