import { ChartMeasure, ChartSettings, PropertyMeasure } from '@metad/ocap-core';
import { EChartsOptions } from '../types';
export interface EChartsLabel {
    position?: string;
    formatter?: string;
}
export declare function labelFormatter(formatter: string, measure: ChartMeasure, property: PropertyMeasure, settings: ChartSettings): (params: any) => string;
export declare function seriesLabel(base: EChartsLabel, measure: ChartMeasure, property: PropertyMeasure, settings: ChartSettings, options: EChartsOptions): any;
export declare function seriesUpperLabel(base: EChartsLabel, measure: ChartMeasure, property: PropertyMeasure, settings: ChartSettings, options: EChartsOptions): any;