import type { EncodeOptions } from '../options.js';
/** 流式编码 UBJSON */
export declare class EncodeTransformer implements Transformer<unknown, Uint8Array> {
    constructor(options?: EncodeOptions);
    private readonly helper;
    private controller;
    /** @inheritdoc */
    transform(obj: unknown, controller: TransformStreamDefaultController<Uint8Array>): void;
    /** @inheritdoc */
    flush(controller: TransformStreamDefaultController<Uint8Array>): void;
}
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