get_current_window.py

def get_current_window(key, start_time):
    ts_data = requests_store.get(key)
    if not key:
        return 0
    
    total_requests = 0
    for ts, count in ts_data.items():
        if ts > start_time:
            total_requests += count
        else:
            del ts_data[ts]
    return total_requests