human
Solve the following python programming problem given the following code:
def debounce(self, view, event_type, func) : 
    key = (key, view.file_name ()) 
    this_keypress = time.time () 
    self.latest_keypresses [key] = this_keypress 
    debounceTime = self.settings ().get ('debounce_time', 500) 
    def callback() : 
        latest_keypress = self.latest_keypresses.get (key, None) 
        if (this_keypress == latest_keypress) : 
            func (view) 
sublime.set_timeout_async (callback, debounceTime) 

    
    

    Fix the buggy line: key = (key, view.file_name ())
assistant
#Here is Python code to fix the buggy line: key = (key, view.

key = (event_type, view.file_name ())