import { IgrGroupByRecord } from "./igr-group-by-record";
import { SummaryOperand as SummaryOperand_internal } from "./SummaryOperand";
import { ContentChildrenManager } from "igniteui-react-core";
import { IgrSummaryResult } from "./igr-summary-result";
export declare class IgrSummaryOperand {
    protected createImplementation(): SummaryOperand_internal;
    protected _implementation: any;
    protected mounted: boolean;
    get nativeElement(): HTMLElement;
    /**
     * @hidden
     */
    get i(): SummaryOperand_internal;
    protected onImplementationCreated(): void;
    protected _contentChildrenManager: ContentChildrenManager;
    constructor();
    protected _provideImplementation(i: any): void;
    findByName(name: string): any;
    setNativeElement(element: any): void;
    count(data: any[]): number;
    operate(data: any[], _allData: any[], _fieldName: string, _groupRecord: IgrGroupByRecord): IgrSummaryResult[];
}