import { D3Scale, Settings } from "../types";
/**
 *
 * @param {any} settings
 * @param {string} seriesKey
 * @param {d3.ScaleLinear} size
 * @param {d3.ScaleOrdinal} color
 * @param {string} label
 * @param {d3.ScaleOrdinal} symbols
 * @param {number?} scale_factor
 * @returns  {d3fc.seriesCanvasPoint}
 */
export declare function pointSeriesCanvas(settings: any, symbolKey: any, size: any, color: any, label: any, symbols: any, scale_factor?: number): any;
export declare function symbolTypeFromColumn(settings: Settings, column: string | null): D3Scale;
export declare function symbolTypeFromGroups(settings: Settings): import("d3").ScaleOrdinal<string, unknown, never>;