code: def fused_forward(self, x: Tensor, type_vec: Tensor) -> Tensor:
      return self.hetero_module(x, type_vec)
  
imports: import copy
  import warnings
  from typing import Dict, List, Optional, Union
  import torch
  import torch.nn.functional
  from torch import Tensor
  import torch_geometric
  from torch_geometric import is_compiling
  from torch_geometric.typing import EdgeType, NodeType, OptTensor
  from torch_geometric.utils import cumsum, scatter
label_desc: Use image node_id 2 for calling the ToHeteroLinear obj's underlying member method code with example usage: obj.fused_forward(x, type_vec) and returns: self