import { Type } from '@angular/core';
import { Widget } from './widget';
import { OutputType } from '../common/widget-enums';
export declare class Formula extends Widget {
    computationLogic: string;
    oldValue: string;
    computation: string;
    outputType: OutputType;
    computationalLogic: string;
    unit: string;
    component?: Type<any>;
    value: string;
    widgetIcon: string;
    constructor(field?: Formula);
    /**
     * get widget value
     *
     * @returns
     */
    getWidgetValue(): any;
    /**
     * Set widget Value
     *
     * @param value
     */
    setWidgetValue(value: any): void;
    /**
     * this will return serialize of widget
     */
    getWidgetSerializedValue(): string;
    newFormula(): void;
    /**function to create report object with existing values
    *
    *@param Report
    *
    */
    formula(field: any): void;
}