<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def to_array(self):
 """ Serializes this GameHighScore to a dictionary. :return: dictionary representation of this object. :rtype: dict """

        array = super(GameHighScore, self).to_array()
        array['position'] = int(self.position)  # type int
        array['user'] = self.user.to_array()  # type User
        array['score'] = int(self.score)  # type int
        return array