/**
 * Evaluate values by operator id.git
 *
 * @param {String} operator Operator id.
 * @param {Array} [params=[]] Arguments to evaluate.
 * @returns {*}
 */
export default function evaluateByOperator(operator: string, params?: any[]): any;
/**
 * Register operator.
 *
 * @param {String|Array} symbol Symbol to register.
 * @param {Function} func Logic to register for this symbol.
 */
export function registerOperation(symbol: string | any[], func: Function): void;