code: def _sanitize_unit_name(unit_name):
      return (
          unit_name.lower()
          .strip()
          .replace(" ", "")
          .replace("/", "")
          .replace("\\", "")
      )
  
imports: from __future__ import unicode_literals
  import io
  import json
  import shutil
  from abc import ABCMeta, abstractmethod, abstractproperty
  from builtins import str, bytes
  from pathlib import Path
  from future.utils import with_metaclass
  from snips_nlu.common.abc_utils import abstractclassmethod, classproperty
  from snips_nlu.common.io_utils import temp_dir, unzip_archive
  from snips_nlu.common.registrable import Registrable
  from snips_nlu.common.utils import json_string, check_random_state
  from snips_nlu.constants import BUILTIN_ENTITY_PARSER, CUSTOM_ENTITY_PARSER, CUSTOM_ENTITY_PARSER_USAGE, RESOURCES, LANGUAGE, RANDOM_STATE
  from snips_nlu.entity_parser import BuiltinEntityParser, CustomEntityParser, CustomEntityParserUsage
  from snips_nlu.exceptions import LoadingError
  from snips_nlu.pipeline.configs import ProcessingUnitConfig
  from snips_nlu.pipeline.configs.config import DefaultProcessingUnitConfig
  from snips_nlu.resources import load_resources
label_desc: Use image node_id 1 for calling a global function with example usage: _sanitize_unit_name(unit_name) and returns: unit_name