class documentation
        
        class _LexicographicKeyVal(_Generic[_address.AddressType, _DataType], _LexicographicKey[_address.AddressType]):
Undocumented
    
    def __init__(self, range, data):
    
  
  Undocumented
| Parameters | |
| range: MemoryRange[ | Undocumented | 
| data: _DataType | Undocumented |