import * as Types from './types';
/**
 * Get rule image from rule ID
 * @param {Types.RuleID} ruleId
 * @returns {string}
 */
export declare function getImageFromRuleId(ruleId: Types.RuleID): string;
/**
 * Convert RGBA to Hex color
 * @param {string} rgba - The RGBA value to convert
 * @param {boolean} [forceRemoveAlpha=false] - Should the alpha value be removed?
 * @returns {string} - The color code in HEX format
 *
 * @description
 * Borrowed from https://stackoverflow.com/a/73401564
 */
export declare function RGBAtoHEX(rgba: string, forceRemoveAlpha?: boolean): string;
/**
 * Format the lang input
 * @param {string} lang - The lang string to format
 * @returns {Lang} - The formatted language string
 */
export declare function formatLang(lang: Types.Lang): Types.Lang;
/**
 * Check if the value is a valid fest region
 * @param {any} value - The value to check
 * @returns {value is FestRegion} - If the value is a valid fest region
 */
export declare function isFestRegion(value: any): value is Types.FestRegion;
/**
 * Fetch data from the URL
 * @param {string} url
 * @param {Types.Options} options
 */
export declare function fetchData(url: string, options: Types.Options): Promise<any>;