human
Solve the following python programming problem given the following code:
@ pytest.fixture 
def expired_throttle_history(storage, expired_timestamps) : 
    def _services_dict(limit) : 
        sd = { 
            
} 
        for s in SQLite.SERVICES : 
            sd [s] = ('green', limit) 
return sd 
limits = (1000, 2000) 
    for limit in limits : 
        snapshot = make_throttle_snapshot ('idle', _services_dict (limit)) 
        storage.update (make_header (snapshot.as_header ())) 
sql = 'UPDATE throttle_history SET timestamp=? WHERE images_limit=?' 
    for param in zip (expired_timestamps, limits) : 
        storage.db.execute (sql, _services_dict) 
return storage 

    
    

    Fix the buggy line: storage.db.execute (sql, _services_dict)
assistant
#Here is Python code to fix the buggy line: storage.

storage.db.execute (sql, param)