import { BuildChartContext, ExtendedChartWidgetProps, NullableChartType } from '../types';
import { QueryState } from '../../../services/nlq/nlq-service';
export type GenerateChartParams = {
    dataSourceTitle: string;
    queryPrompt: string;
    chartPrompt: string;
    chartType: NullableChartType;
    chartTitle: string;
    /** Skip data fetch — load this exact prior result verbatim (e.g. from a prior buildQuery call). */
    queryId?: string | null;
    /** Carry this state forward as incremental context for structural revisions. Ignored when queryId is set. */
    priorQueryState?: QueryState;
};
export type GenerateChartOutput = {
    widgetProps: ExtendedChartWidgetProps;
};
export declare const generateChart: ({ dataSourceTitle, queryPrompt, chartPrompt, chartType, chartTitle, queryId, priorQueryState, }: GenerateChartParams, context: BuildChartContext) => Promise<GenerateChartOutput>;