import type { ChartRenderer } from './renderer-type';
import type { ChartData } from './chart-types';
import type { ExtendedUnion } from '../../treb-base-types/src/index';
import type { ChartFunction } from './chart-functions';
/**
 * transitioning to new structure, this should mirror the old chart
 * interface (at least the public interface)
 */
export declare class Chart {
    renderer: ChartRenderer;
    /** flag indicating we've registered at least once */
    static functions_registered: boolean;
    protected chart_data: ChartData;
    protected node?: HTMLElement;
    constructor(renderer?: ChartRenderer);
    Initialize(node: HTMLElement): void;
    Exec(func: ChartFunction, union: ExtendedUnion): void;
    Clear(): void;
    /** pass through */
    Resize(): void;
    /** pass through */
    Update(): void;
}