input: Write a python function to create a Person object and return its string representation.
  assert create_person("Alice", 30) == "Name: Alice\nAge: 30"
  assert create_person("Bob", 25) == "Name: Bob\nAge: 25"
  assert create_person("Charlie", 40) == "Name: Charlie\nAge: 40"
output: def create_person(name, age):
      class Person:
          def __init__(self, name, age):
              self.name = name
              self.age = age
  
          def __str__(self):
              return f"Name: {self.name}\nAge: {self.age}"
  
      person = Person(name, age)
      return str(person)