type DatabaseFileInput = File | Blob | ArrayBuffer | Uint8Array | ReadableStream>; export declare function normalizeDatabaseFile(dbFile: DatabaseFileInput, convertStreamTo: 'callback'): Promise | (() => Promise | undefined>)>; export declare function normalizeDatabaseFile(dbFile: DatabaseFileInput, convertStreamTo: 'buffer'): Promise>; export declare function normalizeDatabaseFile(dbFile: DatabaseFileInput, convertStreamTo?: undefined): Promise | ReadableStream>>; export {};