import type { BaseChunkOpts, Doc } from '../../types.js';
export declare abstract class BaseChunkAdapter {
    opts: BaseChunkOpts;
    constructor(opts?: BaseChunkOpts);
    chunkText(input: string | string[], opts?: BaseChunkOpts): Promise<Doc[]>;
    validateInput(input: string | string[]): void;
    updateOptions(opts?: BaseChunkOpts): void;
    getOptions(): BaseChunkOpts;
}