input: Write a python function to create an Employee object and verify its attributes.
  assert john.name == "John"
  assert john.age == 25
output: class Employee:
      def __init__(self, name, age):
          self.name = name
          self.age = age
  
  def create_employee(name, age):
      return Employee(name, age)
  
  # Create an employee object
  john = create_employee("John", 25)