/// <reference types="node" />
import type { StreamReaderInterface } from '../utils/stream';
import type { AsyncIterableReturn } from '../utils/type';
export declare function validateCID(reader: StreamReaderInterface): Promise<void>;
export declare const parseHeaderLength: (reader: StreamReaderInterface<Uint8Array | Buffer>, opts?: {
    offset?: number | undefined;
    autoSeek?: boolean | undefined;
} | undefined) => Promise<{
    dataByteLength: number;
    endOffset: number;
}>;
export declare const parseSimpleHeaderLength: (reader: StreamReaderInterface<Uint8Array | Buffer>, opts?: {
    offset?: number | undefined;
    autoSeek?: boolean | undefined;
} | undefined) => Promise<{
    dataByteLength: number;
    endOffset: number;
}>;
export declare const parseHeaderData: (reader: StreamReaderInterface<Uint8Array | Buffer>, opts: {
    headerByteLength: number;
    offset?: number | undefined;
    autoSeek?: boolean | undefined;
}) => Promise<{
    headerData: import("./create").HeaderData;
    endOffset: number;
}>;
export declare const parseSimpleHeaderData: (reader: StreamReaderInterface<Uint8Array | Buffer>, opts: {
    headerByteLength: number;
    offset?: number | undefined;
    autoSeek?: boolean | undefined;
}) => Promise<{
    headerData: import("./create").SimpleHeaderData;
    endOffset: number;
}>;
export declare const parseCiphertextLength: (reader: StreamReaderInterface<Uint8Array | Buffer>, opts?: {
    offset?: number | undefined;
    autoSeek?: boolean | undefined;
} | undefined) => Promise<{
    dataByteLength: number;
    endOffset: number;
}>;
export declare function parseCiphertextIterable<T extends Buffer | Uint8Array>(reader: StreamReaderInterface<T>, { ciphertextByteLength, offset }: {
    ciphertextByteLength: number;
    offset?: number | undefined;
}): AsyncIterableReturn<T, void>;