/**
 * Takes a string and evaluates the result.
 *
 * @param {string} expression The string.
 *
 * @throws {Error} No input.
 * @throws {Error} No valid tokens.
 * @throws {Error} Misused operator: <token>.
 * @throws {Error} Mismatched parentheses.
 * @throws {Error} Invalid token: <token>.
 * @throws {Error} No operations.
 * @throws {Error} Insufficient arguments for method: <token>.
 * @throws {Error} Insufficient operands for operator: <token>.
 * @throws {Error} Division by zero.
 * @throws {Error} Insufficient operators.
 *
 * @returns {number} The result.
 */
export default function (expression: string): number;