human
Solve the following python programming problem given the following code:
def on_query_context(self, view, key, operator, operand, match_all) : 
    def test(a) : 
        if (operator == sublime.OP_EQUAL) : 
            return (a == operand) 
if (operator == sublime.OP_NOT_EQUAL) : 
            return (a != operand) 
return False 
if (key == 'i_search_active') : 
        return test ((isearch_info_for (view) is not None)) 
if (key == 'sbp_has_visible_mark') : 
        if (not SettingsManager.get ('sbp_cancel_mark_enabled', False)) : 
            return False 
return (CmdUtil (view).state.mark_ring.has_visible_mark () == match_all) 
if (key == 'sbp_use_alt_bindings') : 
        return test (SettingsManager.get ('sbp_use_alt_bindings')) 
if (key == 'sbp_use_super_bindings') : 
        return test (SettingsManager.get ('sbp_use_super_bindings')) 
if (key == 'sbp_alt+digit_inserts') : 
        return test ((SettingsManager.get ('sbp_alt+digit_inserts') or (not SettingsManager.get ('sbp_use_alt_bindings')))) 
if (key == 'sbp_has_prefix_argument') : 
        return test (CmdUtil (view).has_prefix_arg ()) 

    
    

    Fix the buggy line: return (CmdUtil (view).state.mark_ring.has_visible_mark () == match_all)
assistant
#Here is Python code to fix the buggy line: return (CmdUtil (view).

return (CmdUtil (view).state.mark_ring.has_visible_mark () == operand)