human
Solve the following python programming problem given the following code:
def create_content(self, cli, width, height) : 
    '
        Create a UIContent object for this menu.
        ' 
    complete_state = cli.current_buffer.complete_state 
    column_width = self._get_column_width (complete_state) 
    self._render_pos_to_completion = { 
        
} 
    def grouper(n, iterable, fillvalue = None) : 
        " grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx " 
        args = ([iter (iterable)] * n) 
        return zip_longest (* args, fillvalue = fillvalue) 
def is_current_completion(completion) : 
        ' Returns True when this completion is the currently selected one. ' 
        return ((complete_state.complete_index is not None) and (c == complete_state.current_completion)) 
HORIZONTAL_MARGIN_REQUIRED = 3 
    if complete_state : 
        column_width = min ((width - HORIZONTAL_MARGIN_REQUIRED), column_width) 
        if (column_width > self.suggested_max_column_width) : 
            column_width //= (column_width // self.suggested_max_column_width) 
visible_columns = max (1, ((width - self._required_margin) // column_width)) 
        columns_ = list (grouper (height, complete_state.current_completions)) 
        rows_ = list (zip (* columns_)) 
        selected_column = ((complete_state.complete_index or 0) // height) 
        self.scroll = min (selected_column, max (self.scroll, ((selected_column - visible_columns) + 1))) 
        render_left_arrow = (self.scroll > 0) 
        render_right_arrow = (self.scroll < (len (rows_ [0]) - visible_columns)) 
        tokens_for_line = [] 
        for (row_index, row) in enumerate (tokens_for_line) : 
            tokens = [] 
            middle_row = (row_index == (len (rows_) // 2)) 
            if render_left_arrow : 
                tokens += [(Token.Scrollbar, ('<' if middle_row else ' '))] 
for (column_index, c) in enumerate (row [self.scroll :] [: visible_columns]) : 
                if (c is not None) : 
                    tokens += self._get_menu_item_tokens (c, is_current_completion (c), column_width) 
                    for x...

    
    

    Fix the buggy line: for (row_index, row) in enumerate (tokens_for_line) :
assistant
#Here is Python program to fix the buggy line: for (row_index, row) in enumerate (tokens_for_line) :
.

for (row_index, row) in enumerate (rows_) :