/**
 * @zhin.js/ai - Ollama Provider
 * 支持本地 Ollama 模型
 */
import { BaseProvider } from './base.js';
import type { ProviderConfig, ChatCompletionRequest, ChatCompletionResponse, ChatCompletionChunk } from '../types.js';
export interface OllamaConfig extends ProviderConfig {
    host?: string;
    models?: string[];
    /** Ollama 上下文窗口大小（token 数），默认 32768。影响多轮对话和技能指令的保持能力 */
    num_ctx?: number;
}
export declare class OllamaProvider extends BaseProvider {
    name: string;
    models: string[];
    contextWindow: number;
    capabilities: {
        vision: boolean;
        streaming: boolean;
        toolCalling: boolean;
        thinking: boolean;
    };
    private host;
    private numCtx;
    constructor(config?: OllamaConfig);
    chat(request: ChatCompletionRequest): Promise<ChatCompletionResponse>;
    chatStream(request: ChatCompletionRequest): AsyncIterable<ChatCompletionChunk>;
    listModels(): Promise<string[]>;
    /**
     * 拉取模型
     */
    pullModel(model: string): Promise<void>;
    healthCheck(): Promise<boolean>;
}
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