/**
 * calculates the alcohol by volume based on the original and final gravity
 * @param {number} originalGravity original specific gravity value (1.050 for example)
 * @param {number} finalGravity final specific gravity value (1.015 for example)
 * @returns {number} the percentage alcohol
 */
export default function alcoholByVolume(originalGravity: number, finalGravity: number): number;