code: def warmup(self, batch: B) -> Optional[int]:
      self.generate_token(batch)
      return None
  
file_path: text-generation-inference/server/text_generation_server/models/model.py
imports: import inspect
  import torch
  from abc import ABC, abstractmethod
  from typing import List, Tuple, Optional, TypeVar, Type
  from transformers import PreTrainedTokenizerBase, PretrainedConfig
  from text_generation_server.models.types import Batch, Generation
  from text_generation_server.utils.speculate import get_speculate
  from text_generation_server.pb.generate_pb2 import InfoResponse
label_desc: Use image node_id 5 for calling the Model obj's underlying member method code with example usage: obj.warmup(batch) and returns: None