/**
 * Copyright (c) Microsoft. All rights reserved.
 */
export declare class LabelerVirtualizationStore {
    endingLine: number;
    startingLine: number;
    lineHeights: number[];
    areLinesRendered: boolean;
    private _lineHeights;
    constructor();
    setLines(start: number, end: number): void;
    markLinesAsRendered(): void;
    updateLineHeight(lineIndex: number, lineHeight: number): void;
    private _updateLineHeightsObservable;
}