code: def _place_filekey(finfo, str_src, dest, str_dest, dest_repo):
      """Put a key into a target repository
  
      Parameters
      ----------
      finfo : dict
        Properties of the source file, as reported by get_content_annexinfo()
      str_src : str
        Source path as a plain str
      dest : Path
        Destination path
      str_dest : str
        Same as `dest`, but as a plain str
      dest_repo_rec : dict
        Repository lookup cache item. This function will add and query
        a 'tmp' key to this record for a temp dir for copy operations
        to be used for the destination repository.
  
      Returns
      -------
      str or dict
        If a str, the key was established and the key name is returned.
        If a dict, an error occurred and an error result record is returned.
      """
      src_key = finfo["key"]
      # make an attempt to compute a key in the target repo, this will hopefully
      # become more relevant once "salted backends" are possible
      # https://github.com/datalad/datalad/issues/3357 that could prevent
      # information leakage across datasets
      if finfo.get("has_content", True):
          dest_key = dest_repo.call_annex_oneline(["calckey", str_src])
      else:
          lgr.debug(
              "File content not available, forced to reuse previous annex key: %s",
              str_src,
          )
          dest_key = src_key
  
      if op.lexists(str_dest):
          # if the target already exists, we remove it first, because we want to
          # modify this path (potentially pointing to a new key), rather than
          # failing next on 'fromkey', due to a key mismatch.
          # this is more compatible with the nature of 'cp'
          dest.unlink()
      res = dest_repo._call_annex_records(
          # we use force, because in all likelihood there is no content for this key
          # yet
          ["fromkey", dest_key, str_dest, "--force"],
      )
      if any(not r["success"] for r in res):
          return dict(
              path=str_dest,
              status="error",
              message="; ".join(
                  m for r in res for m in r.get("error-messages", [])
              ),
          )
      if "objloc" in finfo:
          # we have the chance to place the actual content into the target annex
          # put in a tmp location, git-annex will move from there
          tmploc = dest_repo.get_tmpdir() / dest_key
          _replace_file(
              finfo["objloc"],
              tmploc,
              str(tmploc),
              follow_symlinks=False,
          )
  
          dest_repo.call_annex(["reinject", str(tmploc), str_dest])
  
      return dest_key
  
imports: import logging
  import os.path
  from shutil import copyfile
  import sys
  from datalad.interface.base import Interface
  from datalad.interface.base import build_doc, eval_results
  from datalad.support.constraints import EnsureStr, EnsureNone
  from datalad.interface.common_opts import save_message_opt
  from datalad.support.param import Parameter
  from datalad.distribution.dataset import Dataset, require_dataset
  from datalad.support.annexrepo import AnnexRepo
  from datalad.support.exceptions import CapturedException
  from datalad.utils import ensure_list, get_dataset_root, Path
  from datalad.distribution.dataset import EnsureDataset, datasetmethod, resolve_path
  from functools import lru_cache
label_desc: Use image node_id 6 for calling a global function with example usage: _place_filekey(finfo, str_src, dest, str_dest, dest_repo) and returns: dest_key, dict