There is a confusing information in the part 2 of the exercise called "The shortest person in the room".
The issue is regarding the output we should get when introducing the testing code in the exercise. The example output says it should print a string with the name of the shortest person (In this example Nina) which leads to conclusion that the method should return person.name attribute, but when doing so TMC shows an error and says the shortest() method should return a Person type data which it can never print just the name attribute unless specified as print(person.name)
The output of testing the part 2 of the exercise shouldn't be "Shortest: Nina", it should actually be "Shortest: Nina (162 cm)"