/**
 * Generic chat-completion summarizer.
 */
import type { SummarizerLike } from '../types.js';
export interface ChatCompletionsClient {
    chat: {
        completions: {
            create(body: {
                model: string;
                messages: Array<{
                    role: string;
                    content: string;
                }>;
                max_tokens?: number;
            }): Promise<{
                choices: Array<{
                    message: {
                        content: string | null;
                    };
                }>;
            }>;
        };
    };
}
export interface SummarizerOptions {
    client: ChatCompletionsClient;
    model?: string;
    systemPrompt?: string;
    maxTokens?: number;
}
export declare class Summarizer implements SummarizerLike {
    private readonly client;
    private readonly model;
    private readonly systemPrompt;
    private readonly maxTokens;
    constructor({ client, model, systemPrompt, maxTokens, }: SummarizerOptions);
    summarize(text: string): Promise<string | null>;
}
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