def METHOD_NAME(repo, remote=None,
                          encryption=None, autoenable=False):
    """Initialize and enable datalad special remote if it isn't already.
    Parameters
    ----------
    repo : AnnexRepo
    remote : str, optional
        Special remote name. This should be one of the values in
        datalad.consts.DATALAD_SPECIAL_REMOTES_UUIDS and defaults to
        datalad.consts.DATALAD_SPECIAL_REMOTE.
    encryption, autoenable : optional
        Passed to `init_datalad_remote`.
    """
    from datalad.consts import (
        DATALAD_SPECIAL_REMOTE,
        DATALAD_SPECIAL_REMOTES_UUIDS,
    )
    remote = remote or DATALAD_SPECIAL_REMOTE
    uuid = DATALAD_SPECIAL_REMOTES_UUIDS.get(remote)
    if not uuid:
        raise ValueError("'{}' is not a known datalad special remote: {}"
                         .format(remote,
                                 ", ".join(DATALAD_SPECIAL_REMOTES_UUIDS)))
    name = repo.get_special_remotes().get(uuid, {}).get("name")
    if not name:
        init_datalad_remote(repo, remote,
                            encryption=encryption, autoenable=autoenable)
    elif repo.is_special_annex_remote(name, check_if_known=False):
        lgr.debug("datalad special remote '%s' is already enabled", name)
    else:
        lgr.info("datalad special remote '%s' found. Enabling", name)
        repo.enable_remote(name)