import { ExecutionContextRuntime, SchemaDefinition } from "../types/index.js";
/**
 * 节点处理器接口
 */
export type NodeHandler = (input: Record<string, any>, context: ExecutionContextRuntime) => Promise<any>;
/**
 * 节点元数据接口
 */
export interface NodeMetadata {
    name: string;
    description?: string;
    inputSchema: SchemaDefinition;
    outputSchema: SchemaDefinition;
    category?: string;
    icon?: string;
    displayName?: string;
    examples?: Array<{
        name: string;
        input: Record<string, any>;
        output?: Record<string, any>;
    }>;
}
/**
 * 基础节点类
 * 所有具体的节点类都应该继承这个类
 */
export declare abstract class BaseNode {
    abstract readonly name: string;
    abstract readonly handler: NodeHandler;
    abstract readonly metadata: NodeMetadata;
    /**
     * 执行节点处理器
     */
    execute(input: Record<string, any>, context: ExecutionContextRuntime): Promise<any>;
    /**
     * 获取节点元数据
     */
    getMetadata(): NodeMetadata;
}