Missing 1 required position argument: 'failure' while starting thread.

[BradLivingstone]

Error:
TypeError: scrape_child_link() missing 1 required positional argument: 'failure'

When I get to the following part in my code the above happens.

class A(object):
    def start(self):
        ....
        kill = threading.Event()
        # starting here
        child_link_thread = threading.Thread(target=ThreadExecutioner.execute_child,args=(self.scrape_child_link, child_link_queue, self.site, code_io_handle, text_io_handle, kill)).start()
        ....
    @staticmethod
    def scrape_child_link(self, link: str, used_children: Queue, site: StackOverflow, code_io_handle, text_io_handle,failure: threading.Event):
        ....
    

class ThreadExecutioner():
    @staticmethod
    def execute_child(target: callable(object), tasks: Queue, site: source, code_io_handle, text_io_handle,kill: threading.Event):
        parent_threader = threading.Thread(target=target,args=(task, hit_queue, site, code_io_handle,text_io_handle, kill),daemon=True)
        parent_threader.start() #Exception thrown here
    

Ive stepped through this and all of the variables are set by the time the second thread is dispatched. But for some reason the thread does not recognize the kill variable