class documentation
        
        class LinkedListNode(object):
Node of the linked list
| Method | __init__ | 
    Undocumented | 
| Method | __str__ | 
    Undocumented | 
| Method | delete | 
    Delete node | 
| Method | set | 
    Set data stored into node | 
| Instance Variable | next | 
    Undocumented | 
| Instance Variable | prev | 
    Undocumented | 
| Property | data | 
    Get data stored into node | 
| Instance Variable | _data | 
    Undocumented |