def METHOD_NAME(self, api_token, backend_client):
    client_config_args = self._get_client_config_args(api_token)
    config = backend_client.api.getClientConfig(**client_config_args).response().result
    if hasattr(config, "pyLibVersions"):
        min_recommended = getattr(config.pyLibVersions, "minRecommendedVersion", None)
        min_compatible = getattr(config.pyLibVersions, "minCompatibleVersion", None)
        max_compatible = getattr(config.pyLibVersions, "maxCompatibleVersion", None)
    else:
        click.echo(
            "ERROR: This client version is not supported by your Neptune instance. Please contant Neptune support.",
            sys.stderr,
        )
        raise UnsupportedClientVersion(self.client_lib_version, None, "0.4.111")
    multipart_upload_config_obj = getattr(config, "multiPartUpload", None)
    has_multipart_upload = getattr(multipart_upload_config_obj, "enabled", False)
    if not has_multipart_upload:
        multipart_upload_config = None
    else:
        min_chunk_size = getattr(multipart_upload_config_obj, "minChunkSize")
        max_chunk_size = getattr(multipart_upload_config_obj, "maxChunkSize")
        max_chunk_count = getattr(multipart_upload_config_obj, "maxChunkCount")
        max_single_part_size = getattr(multipart_upload_config_obj, "maxSinglePartSize")
        multipart_upload_config = MultipartConfig(
            min_chunk_size, max_chunk_size, max_chunk_count, max_single_part_size
        )
    return ClientConfig(
        api_url=config.apiUrl,
        display_url=config.applicationUrl,
        min_recommended_version=version.parse(min_recommended) if min_recommended else None,
        min_compatible_version=version.parse(min_compatible) if min_compatible else None,
        max_compatible_version=version.parse(max_compatible) if max_compatible else None,
        multipart_config=multipart_upload_config,
    )