import { LangGraphRunnableConfig } from '@langchain/langgraph';
import { IGraphNode } from '../../../graphs';
import { DbQueryState } from '../state';
import { IDataSetStore } from '../types';
export declare class IsImprovementNode implements IGraphNode<DbQueryState> {
    private readonly store;
    constructor(store: IDataSetStore);
    execute(state: DbQueryState, config: LangGraphRunnableConfig): Promise<DbQueryState>;
}