import logging
import sys
import time
import smbus

class CameraServoWrapper.py

import logging
import sys
import time
import smbus

#ASSUME that you are using a Servo Class created by Power and Movement that sets the servo to a raw angle.
#ASSUME that servo has a function called setAngle which sets the servo angle appropriately.

class CameraServoWrapper(object):
  def __init__(self):
    self.servo = ##ADD THE SERVO here
    self.servo.begin()
    #The angle is the raw angle from servo.
    self.servo.angle = 0;
    #The reference angle is the angle we SET zero
    self.servo.referenceAngleZero = 0;
    
  def setRawAngle(self, angle):
    #sets the raw angle of the servo appropriately
    self.servo.setAnlgle(angle)
    self.Servo.angle = angle

Update CameraServoWrapper.py