text: import importlib
  import os
  
  from neurst.data.text.tokenizer import Tokenizer
  from neurst.utils.registry import setup_registry
  
  build_tokenizer, register_tokenizer = setup_registry(Tokenizer.REGISTRY_NAME, base_class=Tokenizer)
  
  models_dir = os.path.dirname(__file__)
  for file in os.listdir(models_dir):
      path = os.path.join(models_dir, file)
      if not file.startswith('_') and not file.startswith('.') and file.endswith('.py'):
          model_name = file[:file.find('.py')] if file.endswith('.py') else file
          module = importlib.import_module('neurst.data.text.' + model_name)
  