<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def set_title(self, title):
 """ Set title. You can set multiple titles. :Args: - title: Title value """


        self.title = title

        self.add_metadata('DC', 'title', self.title)