code: def _dependency_entries(
      workdir: str,
      user_id: int,
      user_group: int,
      requirements_path: Optional[str] = None,
      conda_env_path: Optional[str] = None,
      setup_extras: Optional[List[str]] = None,
  ) -> str:
      """Returns the Dockerfile entries required to install dependencies from either:
  
      - a requirements.txt file, path supplied by requirements_path
      - a conda environment.yml file, path supplied by conda_env_path.
      - a setup.py file, if some sequence of dependencies is supplied.
  
      An empty list for setup_extras means, run `pip install -c .` with no extras.
      None for this argument means do nothing. If a list of strings is supplied,
      they'll be treated as extras dependency sets.
      """
      ret = ""
  
      def copy(from_path, to_path):
          return copy_command(user_id, user_group, from_path, to_path)
  
      if setup_extras is not None:
          ret += f"""
  {copy("setup.py", workdir)}
  RUN /bin/bash -c "pip install --no-cache-dir {extras_string(setup_extras)}"
  """
  
      if conda_env_path is not None:
          ret += f"""
  {copy(conda_env_path, workdir)}
  RUN /bin/bash -c "{CONDA_BIN} env update \
      --quiet --name caliban \
      --file {conda_env_path} && \
      {CONDA_BIN} clean -y -q --all"
  """
  
      if requirements_path is not None:
          ret += f"""
  {copy(requirements_path, workdir)}
  RUN /bin/bash -c "pip install --no-cache-dir -r {requirements_path}"
  """
  
      return ret
  
imports: from __future__ import absolute_import, division, print_function
  import json
  import os
  import subprocess
  import tempfile
  from enum import Enum
  from pathlib import Path
  from typing import Any, Dict, List, NamedTuple, NewType, Optional, Union
  from absl import logging
  from blessings import Terminal
  import caliban.config
  import caliban.util
  import caliban.util.fs
  import caliban.util.metrics
label_desc: Use image node_id 12 for calling a global function with example usage: _dependency_entries(workdir, user_id, user_group, requirements_path, conda_env_path, setup_extras) and returns: ret, copy_command