import type { MementoOriginator, ReactiveState } from 'ag-charts-core';
import { type AreExact } from 'ag-charts-core';
import type { AgInitialStateLegendOptions as DefectAgInitialStateLegendOptions } from 'ag-charts-types';
import type { ChartState } from '../chartState';
import type { CategoryLegendDatum } from './legendDatum';
type AgInitialStateLegendOptions = AreExact<DefectAgInitialStateLegendOptions['itemId'], string | undefined> extends false ? never : Omit<DefectAgInitialStateLegendOptions, 'itemId'> & {
    itemId?: string | number;
};
type LegendDataMemento = AgInitialStateLegendOptions[];
export declare class LegendManager implements MementoOriginator<LegendDataMemento> {
    mementoOriginatorKey: "legend";
    private readonly chartState;
    constructor(ctx: {
        chartState: ReactiveState<ChartState>;
    });
    createMemento(): {
        visible: boolean;
        seriesId: string;
        itemId: string | number;
        legendItemName: string | undefined;
    }[];
    guardMemento(blob: unknown): blob is LegendDataMemento | undefined;
    restoreMemento(_version: string, _mementoVersion: string, memento: LegendDataMemento | undefined): void;
    private getRestoredData;
    private warnFixed;
    private get legendDataRecord();
    updateData(seriesId: string, data?: CategoryLegendDatum[]): void;
    clearData(): void;
    toggleItem(enabled: boolean, seriesId: string, itemId?: any, legendItemName?: string): void;
    getData(seriesId?: string): CategoryLegendDatum[];
    getDatum({ seriesId, itemId }?: {
        seriesId?: string;
        itemId?: any;
    }): CategoryLegendDatum | undefined;
    getSeriesEnabled(seriesId: string): boolean | undefined;
    getItemEnabled({ seriesId, itemId }?: {
        seriesId?: string;
        itemId?: string | number;
    }): boolean;
}
export {};