code: def init_weights(self):
      nn.init.zeros_(self.weight)
  
imports: from dataclasses import dataclass
  from typing import Optional, Tuple
  import torch
  from torch import nn
  from torch.nn import CrossEntropyLoss
  from transformers.utils import ModelOutput
  from .base import PredictionHead
label_desc: Use image node_id 3 for calling the Biaffine obj's underlying member method code with example usage: obj.init_weights() without return types