import { Retrievable } from "../classes/retrievable";
import type { SpoolReader } from "../contracts/spool_reader";
import type { ConduitBytes } from "../contracts/dispatch_context";
export interface RetrievableSpoolContext {
    storeRetrievableBytes: (id: string, bytes: ConduitBytes) => SpoolReader | Promise<SpoolReader>;
    turnRetrievables: Set<Retrievable>;
}
export declare const computeTextHints: (text: string) => {
    byteLength: number;
    lineCount: number;
};
export declare function autoSpoolRetrievable(ctx: Pick<RetrievableSpoolContext, 'storeRetrievableBytes'>, v: Retrievable): Promise<Retrievable>;
export declare function normalizeRetrievables(ctx: RetrievableSpoolContext): Promise<void>;
export declare function assertUniqueRetrievableIds(recs: ReadonlyArray<Pick<Retrievable, 'id'>>): void;