import { Bytes } from '../bytes.js';
import { ISyncWritable } from '../types.js';
import { IFrameDecoder, IFrameEncoder } from './types.js';
/** options for {@link DelimiterCodec} */
export interface DelimiterCodecOptions {
    /**
     * Strategy for handling delimiter.
     *  - `keep` - delimiter is kept at the end of each frame
     *  - `discard` - delimiter is discarded
     *
     * Ignored for encoding (delimiter is always appended after the frame)
     *
     * @default 'discard'
     */
    strategy?: 'keep' | 'discard';
}
/** a simple frame codec that uses a delimiter to separate frames */
export declare class DelimiterCodec implements IFrameDecoder, IFrameEncoder {
    #private;
    readonly delimiter: Uint8Array;
    readonly options?: DelimiterCodecOptions | undefined;
    /**
     * @param delimiter  delimiter to use
     * @param options  options
     */
    constructor(delimiter: Uint8Array, options?: DelimiterCodecOptions | undefined);
    decode(buf: Bytes, eof: boolean): Uint8Array | null;
    encode(data: Uint8Array, into: ISyncWritable): void;
    reset(): void;
}