import type { Fetcher } from './types';
export interface IReadable {
    size(): Promise<bigint>;
    read(offset: bigint, length: bigint): Promise<Uint8Array>;
}
/**
 * Adapter that lets `@mcap/core`'s `McapIndexedReader` read an MCAP file
 * over HTTP using Range requests. Only the bytes requested by the reader
 * are fetched — typically just the footer + summary section.
 */
export declare function makeMcapReadable(url: string, fetcher: Fetcher, totalSize?: number | null): IReadable;
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