/**
 * Stores textual tags, useful for tagging entities.
 */
export class Tag {
    /**
     * Find all entities that contain specified tags. Entity must have every tag to qualify
     * @param {string[]} tags
     * @param {EntityComponentDataset} ecd
     * @returns {number[]} entities
     */
    static find(tags: string[], ecd: EntityComponentDataset): number[];
    /**
     *
     * @param {string} tag
     * @returns {Tag}
     */
    static fromOne(tag: string): Tag;
    /**
     *
     * @param json
     * @returns {Tag}
     */
    static fromJSON(json: any): Tag;
    /**
     * Utility constructor
     * @param {string} label
     * @return {Tag}
     */
    static from(...label: string): Tag;
    /**
     * @private
     * @type {string[]}
     */
    private values;
    /**
     *
     * @returns {number}
     */
    get count(): number;
    /**
     *
     * @param {number} i
     * @returns {string}
     */
    get(i: number): string;
    clear(): void;
    /**
     * Once the tag is added to the dataset it should be considered immutable, hence why this method is protected
     * @param {string} value
     * @returns {boolean}
     */
    add(value: string): boolean;
    /**
     * Add multiple tags
     * @param {string[]} values
     */
    addAll(values: string[]): void;
    /**
     *
     * @returns {string}
     */
    getFirst(): string;
    /**
     *
     * @param {string} value
     * @returns {boolean}
     */
    contains(value: string): boolean;
    /**
     *
     * @param {string[]} values
     */
    containsAll(values: string[]): boolean;
    /**
     *
     * @param {string[]} values
     * @returns {boolean}
     */
    containsOneOf(values: string[]): boolean;
    /**
     * NOTE: do not modify this value
     * @returns {string[]}
     */
    getValues(): string[];
    /**
     *
     * @param {function(string)} visitor
     * @param {*} [thisArg]
     */
    traverse(visitor: (arg0: string) => any, thisArg?: any): void;
    /**
     *
     * @return {number}
     */
    hash(): number;
    /**
     *
     * @param {Tag} other
     * @return {boolean}
     */
    equals(other: Tag): boolean;
    toJSON(): string[];
    /**
     *
     * @param {string[]|string} json
     */
    fromJSON(json: string[] | string): void;
}
export namespace Tag {
    let typeName: string;
}
export default Tag;
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