input: Write a python function to create an instance of the Student class and test its methods.
  assert student.get_name() == 'John'
  assert student.get_age() == 20
  assert student.get_gender() == 'Male'
  student.set_name('Jane')
  student.set_age(22)
  student.set_gender('Female')
  assert student.get_name() == 'Jane'
  assert student.get_age() == 22
  assert student.get_gender() == 'Female'
output: class Student:
      def __init__(self, name, age, gender):
          self.name = name
          self.age = age
          self.gender = gender
  
      def get_name(self):
          return self.name
  
      def get_age(self):
          return self.age
  
      def get_gender(self):
          return self.gender
  
      def set_name(self, name):
          self.name = name
  
      def set_age(self, age):
          self.age = age
  
      def set_gender(self, gender):
          self.gender = gender
  
  def test_student():
      student = Student('John', 20, 'Male')
      assert student.get_name() == 'John'
      assert student.get_age() == 20
      assert student.get_gender() == 'Male'
      student.set_name('Jane')
      student.set_age(22)
      student.set_gender('Female')
      assert student.get_name() == 'Jane'
      assert student.get_age() == 22
      assert student.get_gender() == 'Female'