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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 _text_position(size, text, font):
 """ Returns the left-top point where the text should be positioned. """

        width, height = font.getsize(text)
        left = (size - width) / 2.0
        top = (size - height) / 3.0
        return left, top