human
Solve the following python programming problem given the following code:
@ async 
@ require_browser 
def run(self) : 
    old_selector = browser.old_css_selector 
    @ async 
    def cancel() : 
        browser.unselect () 
        if old_selector : 
            browser.browser.select_css (old_selector) 
view = self.window.show_input_panel ('CSS Selector', browser.old_css_selector, None, cancel.highlight, cancel) 
    view.sel ().add (sublime.Region (0, view.size ())) 

    
    

    Fix the buggy line: view = self.window.show_input_panel ('CSS Selector', browser.old_css_selector, None, cancel.highlight, cancel)
assistant
#Here is Python code to fix the buggy line: view = self.

view = self.window.show_input_panel ('CSS Selector', browser.old_css_selector, None, self.highlight, cancel)