import { LLMResult } from '@langchain/core/outputs';
export declare class TokenCounter {
    private inputs;
    private outputs;
    private countMap;
    private runMap;
    clear(): void;
    handleLlmStart(runId: string, modelName: string): void;
    handleLlmEnd(runId: string, message: LLMResult): {
        inputTokens: number;
        outputTokens: number;
    };
    getCounts(): {
        inputs: number;
        outputs: number;
        map: {
            [k: string]: {
                inputTokens: number;
                outputTokens: number;
            };
        };
    };
}