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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def push_pos(self, *args):
 """Set my current position, expressed as proportions of the board's width and height, into the ``_x`` and ``_y`` keys of the entity in my ``proxy`` property, such that it will be recorded in the database. """

        self.proxy['_x'] = self.x / self.board.width
        self.proxy['_y'] = self.y / self.board.height