human
Solve the following python programming problem given the following code:
def filter_command_list(self) : 
    'Returns a filtered list of commands based on the two attributes
        provided, :attr:`show_check_failure` and :attr:`show_hidden`. Also
        filters based on if :meth:`is_cog` is valid.

        Returns
        --------
        iterable
            An iterable with the filter being applied. The resulting value is
            a (key, value) tuple of the command name and the command itself.
        ' 
    def predicate(tuple) : 
        cmd = tuple [1] 
        if self.is_cog () : 
            if (cmd.instance is not self.command) : 
                return False 
if (cmd.hidden and (not self.show_hidden)) : 
            return False 
if self.show_check_failure : 
            return True 
try : 
            return cmd.can_run (self.context) 
except CommandError : 
            return False 
iterator = (self.command.commands.items () if (not self.is_cog ()) else self.context.bot.commands.items ()) 
    return filter (predicate, self) 

    
    

    Fix the buggy line: return filter (predicate, self)
assistant
#Here is Python code to fix the buggy line: return filter (predicate, self)
.

return filter (predicate, iterator)