import { AgentTool } from '../types/index.js';
/**
 * Chart types supported by the graph tool
 */
export type ChartType = 'line' | 'bar' | 'pie' | 'scatter' | 'area' | 'histogram';
/**
 * Data point for charts
 */
export interface DataPoint {
    x: string | number;
    y: number;
    label?: string;
}
/**
 * Chart configuration
 */
export interface ChartConfig {
    title?: string;
    xLabel?: string;
    yLabel?: string;
    width?: number;
    height?: number;
    backgroundColor?: string;
    colorScheme?: string[];
}
/**
 * Creates a graph/chart tool that can visualize data
 *
 * @param options - Configuration options for the graph tool
 * @returns An AgentTool instance for creating graphs
 */
export declare function createGraphTool(options?: {
    outputFormat?: 'svg' | 'html' | 'base64' | 'url';
    chartLibrary?: 'chartjs' | 'd3' | 'plotly';
    storagePath?: string;
}): AgentTool;
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