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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 set_white_point(self, white_point, point2=None):
 """Set white point part of cHRM chunk"""

        if isinstance(white_point, float) and isinstance(point2, float):
            white_point = (white_point, point2)
        self.white_point = white_point