import type { ImageOps } from "./image/types";
export declare let imageOps: ImageOps;
export type ConversationMessage = {
    role: "user" | "assistant";
    content: string;
    chartData?: unknown;
    vegaSpec?: any;
};
export type GenerateChartOptions = {
    data: unknown;
    prompt: string;
    fileType?: "svg" | "png";
    outputFormat?: "image" | "chartData";
    model?: string;
    apiKey?: string;
    isSubscribed?: boolean;
    conversationHistory?: ConversationMessage[];
    previousChartContext?: {
        lastChartData?: unknown;
        lastChartSpec?: any;
    };
};
export type ChartDataResult = {
    kind: "chartData";
    library: string;
    data: any;
    config: any;
    explanation?: string;
};
export type GeneratedChartResult = {
    kind: "image";
    fileType: "svg" | "png";
    dataUrl: string;
    vegaSpec?: any;
    explanation?: string;
} | ChartDataResult;
export declare function generateChart(options: GenerateChartOptions): Promise<GeneratedChartResult>;
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