import type { CBORValue } from "./types.js";
import { DecodeOptions, FloatSize } from "./options.js";
export interface AsyncDecodeOptions extends DecodeOptions {
    onFree?: (chunk: Uint8Array) => void;
}
export declare class Decoder<T extends CBORValue = CBORValue> implements AsyncIterableIterator<T> {
    readonly allowUndefined: boolean;
    readonly minFloatSize: (typeof FloatSize)[keyof typeof FloatSize];
    private offset;
    private byteLength;
    private readonly chunks;
    private readonly constantBuffer;
    private readonly constantView;
    private readonly iter;
    private readonly onFree?;
    private readonly touchedChunks;
    private readonly freedChunks;
    constructor(source: AsyncIterable<Uint8Array>, options?: AsyncDecodeOptions);
    [Symbol.asyncIterator]: () => this;
    private allocate;
    private fill;
    private constant;
    private float16;
    private float32;
    private float64;
    private uint8;
    private uint16;
    private uint32;
    private uint64;
    private decodeBytes;
    private decodeString;
    private getArgument;
    next(): Promise<{
        done: true;
        value: undefined;
    } | {
        done: false;
        value: T;
    }>;
    private decodeValue;
}
/** Decode an async iterable of Uint8Array chunks into an async iterable of CBOR values */
export declare function decodeAsyncIterable(source: AsyncIterable<Uint8Array>, options?: AsyncDecodeOptions): AsyncIterableIterator<CBORValue>;