human
Solve the following python programming problem given the following code:
@ fluff.date_emitter 
def total(self, case) : 
    def child_died(a) : 
        return (a.updated_known_properties.get ('child_alive', None) == 'no') 
date = latest_action_date (get_actions (self, action_filter = child_died)) 
    if date : 
        (yield date) 

    
    

    Fix the buggy line: date = latest_action_date (get_actions (self, action_filter = child_died))
assistant
#Here is Python program to fix the buggy line: date = latest_action_date (get_actions (self, action_filter = child_died))
.

date = latest_action_date (get_actions (case, action_filter = child_died))