get_sequence_max_size
Description:
Parameters:
| this | a ServerOperation object | 
| path | a complete path to a sequence node (starting with "/") | 
Returns:
| the maximum number of items in the sequence at  | 
| this | a ServerOperation object | 
| path | a complete path to a sequence node (starting with "/") | 
| the maximum number of items in the sequence at  |