<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def register_proper_name(self, name):
 """Registers a proper name to the database."""

        with self.proper_names_db_path.open("a") as f:
            f.write(u"{0}\n".format(name))