/**
 * Symbols for drawing the axes on the graph.
 */
export declare const AXIS: {
    n: string;
    ns: string;
    y: string;
    nse: string;
    x: string;
    we: string;
    e: string;
};
/**
 * Symbols for rendering chart elements, including lines and areas.
 */
export declare const CHART: {
    we: string;
    wns: string;
    ns: string;
    nse: string;
    wsn: string;
    sne: string;
    area: string;
};
/**
 * Symbol representing an empty space on the graph.
 */
export declare const EMPTY = " ";