public class Machine {
    
    
    
    /**
     * Function name – dispense
     * @param row (int)
     * @param spot (int)
     * @return (boolean)
     * 
     * Inside the function:
     *  1. Checks if the requested item has a quantity bigger than 0.
     *      • if so: decreases its quantity by one and returns true.
     *      • otherwise: returns false.
     */
}