import { Serializable } from '../internal.js';
/**
 * BufWriter init options.
 */
export interface BufWriterOpts {
    size?: number;
    maxSize?: number;
}
/**
 * BufWriter sequence callback.
 */
export type BufWriterSeqCallback<T> = (writer: BufWriter, el: T, i: number, len: number) => void;
/**
 * BufWriter.
 *
 * Class used for writing BCS data chunk by chunk. Normally this is used via
 * the BCS wrapper, but can also be used as a general purpose Buffer writer.
 */
export declare class BufWriter {
    private cursor;
    private size;
    private chunkSize;
    private maxSize;
    private view;
    constructor({ size, maxSize }?: BufWriterOpts);
    get data(): Uint8Array;
    writeBool(val: boolean): BufWriter;
    writeF32(val: number): BufWriter;
    writeF64(val: number): BufWriter;
    writeI8(val: number | bigint): BufWriter;
    writeI16(val: number | bigint): BufWriter;
    writeI32(val: number | bigint): BufWriter;
    writeI64(val: number | bigint): BufWriter;
    writeU8(val: number | bigint): BufWriter;
    writeU16(val: number | bigint): BufWriter;
    writeU32(val: number | bigint): BufWriter;
    writeU64(val: number | bigint): BufWriter;
    writeULEB(val: number): BufWriter;
    writeFixedBytes(val: Uint8Array): BufWriter;
    writeBytes(val: Uint8Array): BufWriter;
    writeFixedSeq<T>(seq: T[], cb: BufWriterSeqCallback<T>): BufWriter;
    writeSeq<T>(seq: T[], cb: BufWriterSeqCallback<T>): BufWriter;
    write<T>(serializer: Serializable<T>, item: T): BufWriter;
    _writeVarInt(int: number | bigint): BufWriter;
    toBytes(): Uint8Array;
    private push;
    private expand;
}
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