import { ElementRef } from '@angular/core';
import { OnChanges } from '@angular/core';
import { BarOptions } from '../interfaces/percentage-bar-options.model';
import { GraphDataModel } from '../interfaces/graph-data.model';
export declare class FrappeChartsPercentageDirective implements OnChanges {
    private el;
    title?: string;
    data: GraphDataModel;
    colors?: string[];
    height?: number;
    type: string;
    maxSlices?: number;
    barOptions?: BarOptions;
    constructor(el: ElementRef);
    ngOnChanges(): void;
    getPieInputs(): any;
    addBarOptions(pieobject: any): void;
}