code: def open_file(loc: Union[str, Path]) -> IO:
      """Handle .gz, .tar.gz or unzipped files"""
      loc = ensure_path(loc)
      if tarfile.is_tarfile(str(loc)):
          return tarfile.open(str(loc), "r:gz")  # type: ignore[return-value]
      elif loc.parts[-1].endswith("gz"):
          return (line.decode("utf8") for line in gzip.open(str(loc), "r"))  # type: ignore[return-value]
      elif loc.parts[-1].endswith("zip"):
          zip_file = zipfile.ZipFile(str(loc))
          names = zip_file.namelist()
          file_ = zip_file.open(names[0])
          return (line.decode("utf8") for line in file_)  # type: ignore[return-value]
      else:
          return loc.open("r", encoding="utf8")
  
imports: import gzip
  import tarfile
  import warnings
  import zipfile
  from itertools import islice
  from pathlib import Path
  from typing import IO, TYPE_CHECKING, Any, Dict, Optional, Union
  import numpy
  import srsly
  import tqdm
  from thinc.api import Config, ConfigValidationError, fix_random_seed, set_gpu_allocator
  from ..errors import Errors, Warnings
  from ..lookups import Lookups
  from ..schemas import ConfigSchemaTraining
  from ..util import DEFAULT_OOV_PROB, OOV_RANK, ensure_path, get_sourced_components, load_model, load_model_from_config, logger, registry, resolve_dot_names
  from ..vectors import Mode
  from ..vectors import Vectors
  from .pretrain import get_tok2vec_ref
label_desc: Use image node_id 7 for calling a global function with example usage: open_file(loc) and returns: tarfile, unknown, unknown, loc