code: def get_containerfile(
      bento_tag: Tag | str,
      output_path: str | None = None,
      enable_buildkit: bool = True,
      features: t.Sequence[str] | None = None,
      _bento_store: BentoStore = Provide[BentoMLContainer.bento_store],
  ):
      """
      Returns the generated container file for a given Bento.
  
      Note that the container file (Dockerfile) inside the Bento is minimal, whereas
      this utility functions returns the container file that :ref:`bentoml containerize <reference/cli:containerize>` will
      be using.
  
      .. note::
  
          If ``output_path`` is not specified, then the contents of the container file
          will be printed out to ``sys.stderr``. If provided, then the final container file
          will be written to that given path.
  
      Args:
          bento_tag: Given tag for the bento.
          output_path: Optional output path to write the final container file to.
                       Note that if ``output_path`` is a directory, then the targeted file
                       will be ``output_path + os.sep + "<bento_tag>.dockerfile"``.
          enable_buildkit: Whether the container file contains BuildKit syntax.
          features: Optional features to include in the container file. See :ref:`concepts/bento:Python packages`
                    for additional BentoML features.
      """
      bento = _bento_store.get(bento_tag)
      with _internal_construct_containerfile(
          bento,
          enable_buildkit=enable_buildkit,
          features=features,
          add_header=True,
      ) as (_, final_containerfile):
          if output_path is not None:
              if os.path.isdir(output_path):
                  output_path = output_path = os.path.join(
                      output_path,
                      f"{bento.tag.path().replace(os.sep,'_')}.dockerfile",
                  )
              logger.info(
                  "Writting Containerfile for '%s' to '%s'.",
                  bento.tag,
                  output_path,
              )
              shutil.copyfile(final_containerfile, output_path)
              return
          # otherwise we will just write this to stderr.
          with open(final_containerfile, "r") as f:
              sys.stderr.write(f.read())
  
imports: from __future__ import annotations
  import logging
  import os
  import shutil
  import sys
  import typing
  from simple_di import Provide
  from simple_di import inject
  from ._internal.configuration.containers import BentoMLContainer
  from ._internal.container import build
  from ._internal.container import construct_containerfile
  from ._internal.container import get_backend
  from ._internal.container import health
  from ._internal.container import register_backend
  from .exceptions import BentoMLException
label_desc: Use image node_id 8 for calling a global function with example usage: get_containerfile(bento_tag, output_path, enable_buildkit, features, _bento_store) without return types