/**
 * Provides the final gravity of a beer given the initial
 * brix and the final brix measured.
 * @param {number} ogBrix the original gravity as refractometer brix
 * @param {number} fgBrix the final gravity as refractometer brix
 * @returns {number} the final gravity converted from brix
 */
export default function brixToFinalGravity(ogBrix: number, fgBrix: number): number;