import type { SyncRequestContext } from './context.js';
import type { SegmentRecord } from './segment-store.js';
export interface SegmentDownloadRequest {
    readonly segmentId: string;
    /** The `X-Syncular-Scopes` header: canonical JSON of the requested map. */
    readonly scopesHeader: string;
}
export interface SegmentDownloadResult {
    readonly record: SegmentRecord;
    readonly bytes: Uint8Array;
    /** Response headers per §5.5. */
    readonly headers: Record<string, string>;
}
export declare function handleSegmentDownload(ctx: SyncRequestContext, request: SegmentDownloadRequest): Promise<SegmentDownloadResult>;