class documentation
        
        class CaesarCipher:
Class for doing encryption and decryption using a Caesar cipher.
| Method | __init__ | Construct Caesar cipher using given integer shift for rotation. | 
| Method | decrypt | Return decrypted message given encrypted secret. | 
| Method | encrypt | Return string representing encripted message. | 
| Method | _transform | Utility to perform transformation based on given code string. | 
| Instance Variable | _backward | Undocumented | 
| Instance Variable | _forward | Undocumented |