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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_orientation_radians(self):
 """ Returns a dictionary object to represent the current orientation in radians using the aircraft principal axes of pitch, roll and yaw """


        raw = self._get_raw_data('fusionPoseValid', 'fusionPose')

        if raw is not None:
            raw['roll'] = raw.pop('x')
            raw['pitch'] = raw.pop('y')
            raw['yaw'] = raw.pop('z')
            self._last_orientation = raw

        return deepcopy(self._last_orientation)