input: Write a python function to create an instance of the Person class and retrieve the name, age, and country of that person.
  assert get_person_details('Alice', 30, 'USA') == ('Alice', 30, 'USA')
  assert get_person_details('Bob', 25, 'Canada') == ('Bob', 25, 'Canada')
  assert get_person_details('Charlie', 40, 'UK') == ('Charlie', 40, 'UK')
output: class Person:
      def __init__(self, name, age, country):
          self.name = name
          self.age = age
          self.country = country
  
  def get_person_details(name, age, country):
      person = Person(name, age, country)
      return person.name, person.age, person.country