input: Write a python function to create an instance of the Employee class, and return its string representation.
  assert create_employee_instance("John", 24) == "Employee(John, 24)"
  assert create_employee_instance("Alice", 30) == "Employee(Alice, 30)"
  assert create_employee_instance("Bob", 45) == "Employee(Bob, 45)"
output: class Employee:
      def __init__(self, name, age):
          self.name = name
          self.age = age
  
      def __str__(self):
          return f"Employee({self.name}, {self.age})"
  
  def create_employee_instance(name, age):
      employee = Employee(name, age)
      return str(employee)