code: def validate(self):
      self.logger.info(
          "Irony...fit is not implmented yet. This is a pretrained-only inference model"
      )
  
imports: import os
  from .data_abs import BertAbsDataBunch
  from .learner_util import Learner
  from torch import nn
  from typing import List
  import torch
  from box import Box
  from tokenizers import BertWordPieceTokenizer
  from .summarisation import BertAbs, build_predictor
  from .summarisation import BertAbsConfig
  from fastprogress.fastprogress import master_bar, progress_bar
  import numpy
  import pandas
  from pathlib import Path
label_desc: Use image node_id 4 for calling the BertAbsLearner obj's underlying member method code with example usage: obj.validate() without return types