import { PositiveInt } from '@kizahasi/ot-core';
export declare class NonEmptyString {
    #private;
    constructor(source: string);
    get value(): string;
    get length(): PositiveInt;
    concat(other: NonEmptyString): NonEmptyString;
    static tryCreate(source: string): NonEmptyString | undefined;
    toString(): string;
}
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