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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 get_default_cam_pos(self):
 """ Returns the default focal points and viewup. Uses ResetCamera to make a useful view. """

        focal_pt = self.center
        return [np.array(rcParams['camera']['position']) + np.array(focal_pt),
                focal_pt, rcParams['camera']['viewup']]