code: def train_from_file(
      self, file_path, vocab_size, model_path, n_threads
  ):
      train_command = f"yttm bpe "
      train_command += f" --data={file_path} --model={model_path} "
      train_command += (
          f" --vocab_size={vocab_size}  --n_threads={n_threads} "
      )
      assert os.system(train_command) == 0
  
imports: import argparse
  import os
  from pathlib import Path
  from time import time
  from tabulate import tabulate
  from tokenizers import pre_tokenizers
  from tokenizers import Tokenizer
  from tokenizers.models import BPE
  from tokenizers.trainers import BpeTrainer
label_desc: Use image node_id 1 for calling the YouTokenToMeInterface obj's underlying member method code with example usage: obj.train_from_file(file_path, vocab_size, model_path, n_threads) without return types