In python please

What does this mean in the context of a Dictionary (x): x.items (), x.keys (), X.values() ? Explain using examples. . Create a function age_difference that takes two arguments: a father's current age f_age and his son's current age s_age. Calculate how many years ago the father was three times as old as his son, or in how many years he will be three times as old. Consider the maximum age of human beings to be 120. Test code # Example 1 print (age_difference(57, 17)) # --> prints 3 # 3 years from now, the father will be 60 years old and his son will be 20 years old. # Example 2 print (age_difference (78, 18)) # --> returns 12 # 12 years from now, father will be 90 years old and his son will be 30 years old. # Example 3 print (age_difference (63, 23)) # --> prints 3 # 3 years ago, father was 60 years old and his son was 20 years old