import { IOptionsService } from 'common/services/Services';
import { ICharSizeService } from 'browser/services/Services';
import { Disposable } from 'vs/base/common/lifecycle';
export declare class CharSizeService extends Disposable implements ICharSizeService {
    private readonly _optionsService;
    serviceBrand: undefined;
    width: number;
    height: number;
    private _measureStrategy;
    get hasValidSize(): boolean;
    private readonly _onCharSizeChange;
    readonly onCharSizeChange: import("vs/base/common/event").Event<void>;
    constructor(document: Document, parentElement: HTMLElement, _optionsService: IOptionsService);
    measure(): void;
}
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