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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_rudder(self, angle):
        '''
        Set the angle of the rudder to be `angle` degrees.

        :param angle: rudder angle
        :type angle: float between -90 and 90
        '''
        angle = float(angle)
        request = self.boatd.post({'value': float(angle)}, '/rudder')
        return request.get('result')