export interface ConfigurationRecoveryReference {
    backupId: string;
    originalRevision: string;
}
/** 原始秘密字节只留在管理域；备份不提供公网读取或自动删除接口。 */
export declare class ConfigurationRecoveryStore {
    private readonly directory;
    private readonly identity;
    constructor(directory: string);
    backup(snapshot: {
        revision: string;
        bytes: Uint8Array;
    }): ConfigurationRecoveryReference;
    read(ref: ConfigurationRecoveryReference): Buffer;
    private file;
    private checkDirectory;
}
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