import type { FileCollection } from '../FileCollection.ts';
type SyncOrAsync<T> = T | Promise<T>;
export type SupportedBufferInput = SyncOrAsync<Uint8Array | ArrayBufferLike | ArrayBufferView>;
export declare function appendArrayBuffer(fileCollection: FileCollection, relativePath: string, arrayBuffer: SupportedBufferInput, options?: {
    dateModified?: number;
    extra?: boolean;
}): Promise<void>;
export {};
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