input: Write a python function to create a Student object and update its attributes.
  assert create_and_update_student("Alice", 20, 85, "A123").get_name() == "Alice"
  assert create_and_update_student("Alice", 20, 85, "A123").get_age() == 20
  assert create_and_update_student("Alice", 20, 85, "A123").get_marks() == 85
  assert create_and_update_student("Alice", 20, 85, "A123").get_roll_number() == "A123"
output: class Student:
      def __init__(self, name, age, marks, roll_number):
          self.name = name
          self.age = age
          self.marks = marks
          self.roll_number = roll_number
  
      def get_name(self):
          return self.name
  
      def get_age(self):
          return self.age
  
      def get_marks(self):
          return self.marks
  
      def get_roll_number(self):
          return self.roll_number
  
  def create_and_update_student(name, age, marks, roll_number):
      student = Student(name, age, marks, roll_number)
      return student