export interface BackupFileInfo {
    relativePath: string;
    originalPath: string;
    size: number;
    reason: string;
}
export interface BackupManifest {
    timestamp: string;
    version: string;
    reason: string;
    files: BackupFileInfo[];
    projectRoot: string;
}
export interface BackupResult {
    success: boolean;
    backupPath: string;
    filesBackedUp: number;
    error?: string;
}
export declare function createBackup(projectRoot: string, filesToBackup: string[], reason: string, version: string): Promise<BackupResult>;
export declare function restoreBackup(backupPath: string): Promise<number>;
export declare function listBackups(projectRoot: string): Promise<BackupManifest[]>;
export declare function pruneBackups(projectRoot: string, keepCount?: number): Promise<number>;
export declare function getBackupSize(backupPath: string): Promise<number>;
export declare function formatBackupSize(bytes: number): string;
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