interface Result {
    characters: string;
    lowestLength: number;
    highestLength: number;
    averageLength: number;
}
export default class StringStats {
    private _strings;
    private _characters;
    private _lowestLength;
    private _highestLength;
    private _sumLength;
    private _numStrings;
    private _numStringsAdded;
    private _numCharactersAdded;
    private _isSummarized;
    add: (string: string) => void;
    get result(): Result;
    private _summarize;
}
export {};