/**
 * StringValueObject is an abstract class that represents a string value object.
 * It provides methods for validating the string value and comparing it with other string value objects.
 *
 * @template S - The type of the string value object, which extends string.
 */
declare abstract class StringValueObject<S extends string = string> {
    readonly value: S;
    /**
     * Constructs a new StringValueObject instance.
     *
     * @param value - The string value.
     * @param allowedValues - Optional. An array of allowed string values.
     * @param property - Optional. The property name.
     * @throws {EmptyStringValueError} If the value is null, undefined, or an empty string.
     * @throws {InvalidStringValueTypeError} If the value is not a string.
     * @throws {InvalidStringValueError} If the value is not included in the allowedValues array.
     */
    constructor(value: S, allowedValues?: S[], property?: string);
    /**
     * Checks if the value is a string.
     *
     * @param value - The value to check.
     * @param property - Optional. The property name.
     * @throws {InvalidStringValueTypeError} If the value is not a string.
     */
    private static allowedType;
    /**
     * Checks if the value is included in the allowedValues array.
     *
     * @param value - The value to check.
     * @param values - Optional. An array of allowed string values.
     * @param property - Optional. The property name.
     * @throws {InvalidStringValueError} If the value is not included in the allowedValues array.
     */
    private static allowedValues;
    /**
     * Checks if the value is not null, undefined, or an empty string.
     *
     * @param value - The value to check.
     * @param property - Optional. The property name.
     * @throws {EmptyStringValueError} If the value is null, undefined, or an empty string.
     */
    private static notEmpty;
    /**
     * Compares the string value of the current instance with the string value of another StringValueObject instance.
     *
     * @param other - The other StringValueObject instance to compare with.
     * @returns {boolean} True if the string values are equal, false otherwise.
     */
    isEqualsTo(other: StringValueObject): boolean;
    /**
     * Returns the string value of the current instance.
     *
     * @returns {string} The string value.
     */
    toString(): string;
}

export { StringValueObject as default };