import * as OOXML from 'ooxml-types';
export declare class SharedStrings {
    strings: string[];
    reverse: Record<string, number>;
    /** read strings table from (pre-parsed) xml; removes any existing strings */
    FromXML(sst: OOXML.SharedStringTable): void;
    /** return a string by index */
    Get(index: number): string | undefined;
    /** find existing string or insert, and return index */
    Ensure(text: string): number;
}