code: def forward(self, x: torch.Tensor) -> torch.Tensor:
      x = self.linear_layers(x)
      return x
  
file_path: pytorch_tabular/src/pytorch_tabular/models/category_embedding/category_embedding_model.py
imports: import torch
  import torch.nn
  from omegaconf import DictConfig
  from pytorch_tabular.models.common.layers import Embedding1dLayer
  from pytorch_tabular.utils import _initialize_layers, _linear_dropout_bn
  from ..base_model import BaseModel
label_desc: Use image node_id 4 for calling the CategoryEmbeddingBackbone obj's underlying member method code with example usage: obj.forward(x) and returns: x