export declare const chartImageTools: {
    createChartImage: import("ai").Tool<{
        filename: string;
        type: "bar" | "line" | "pie" | "doughnut";
        labels: string[];
        datasets: {
            label: string;
            data: number[];
            color?: string | undefined;
        }[];
        width: number;
        height: number;
        title?: string | undefined;
    }, {
        success: false;
        error: string;
    } | ({
        success: true;
    } & {
        path: string;
        relativePath: string;
        bytes: number;
    })>;
};
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