import { LoggerService } from '@backstage/backend-plugin-api';
import type { Config } from '@backstage/config';
import { ConfigSchema } from '@backstage/config-loader';
/** @public */
export declare function createConfigSecretEnumerator(options: {
    logger: LoggerService;
    dir?: string;
    schema?: ConfigSchema;
}): Promise<(config: Config) => Iterable<string>>;
