input: Write a python function to create an instance of ObjectAbstract, set its data to a specific value, and then retrieve and print that data.
  assert test_object_abstract("Hello, World!")=="Hello, World!"
  assert test_object_abstract(12345)==12345
  assert test_object_abstract([1,2,3,4,5])==[1,2,3,4,5]
output: class ObjectAbstract:
      def __init__(self):
          self.data = None
  
      def set_data(self, data):
          self.data = data
  
      def get_data(self):
          return self.data
  
  def test_object_abstract(value):
      obj = ObjectAbstract()
      obj.set_data(value)
      return obj.get_data()