Programs like the BMI calculator rely on classes to both manage and process information. Let$$s consider a similar program that deals with loan payments. This program will include a Loan class to construct objects that consist of the loan amount, number of years the loan will be taken out for, annual interest rate on the loan, and the date the loan was taken out on$.$ That date can be determined by using the datetime library

today $=$ datetime.date.today$()$

This class will also include functions to get each of these four properties as well as each monthly payment and the total payment amount. Use the following equation to get a monthly payment $($the monthly rate is $1/12$ of the annual interest rate$)$:

$$h$=$h$(1+$h$)12(1+$h$)121$

Use the following equation to get the total payment:

$=$h$12$