input: Write a python function to create a Person object and retrieve its attributes.
  assert create_person("John Doe", "123 Main St", "555-1234").get_name() == "John Doe"
  assert create_person("Jane Smith", "456 Elm St", "555-5678").get_address() == "456 Elm St"
  assert create_person("Alice Johnson", "789 Oak St", "555-9012").get_phone_number() == "555-9012"
output: def create_person(name, address, phone_number):
      class Person:
          def __init__(self, name, address, phone_number):
              self._name = name
              self._address = address
              self._phone_number = phone_number
  
          def get_name(self):
              return self._name
  
          def get_address(self):
              return self._address
  
          def get_phone_number(self):
              return self._phone_number
  
      return Person(name, address, phone_number)