human
Complete this python program:
def init_update_task(parent, runtask, model):
assistant
#Here is the Python code you requested.

    """Update the model in the background
    git-cola should startup as quickly as possible.
    """
    def update_status():
        model.update_status(update_index=True)
    task = qtutils.SimpleTask(parent, update_status)
    runtask.start(task)