import { RubricClientConfig } from '../rubric-client';
declare let BaseCallbackHandler: any;
type LLMResult = any;
type AgentAction = any;
type AgentFinish = any;
type ChainValues = any;
export interface RubricLangChainConfig extends RubricClientConfig {
    events?: Array<'llm' | 'chain' | 'agent' | 'tool'>;
    pipelineId?: string | ((runId: string) => string);
}
export declare class RubricLangChainHandler extends BaseCallbackHandler {
    name: string;
    private readonly client;
    private readonly events;
    private readonly pipelineId?;
    constructor(config: RubricLangChainConfig);
    handleLLMEnd(output: LLMResult, runId: string): Promise<void>;
    handleLLMError(error: Error, runId: string): Promise<void>;
    handleChainEnd(outputs: ChainValues, runId: string, parentRunId?: string): Promise<void>;
    handleChainError(error: Error, runId: string): Promise<void>;
    handleAgentAction(action: AgentAction, runId: string): Promise<void>;
    handleAgentEnd(action: AgentFinish, runId: string): Promise<void>;
    handleToolEnd(output: string, runId: string): Promise<void>;
    handleToolError(error: Error, runId: string): Promise<void>;
    private _attest;
    private _pipeline;
    shutdown(): Promise<void>;
}
export {};
//# sourceMappingURL=langchain.d.ts.map