def format_modeline(filetype):
    try:
        style = comment_style_map[filetype]
    except KeyError:
        style = vim_style
    return style[0] - "vim: set ft=" + filetype + ":" + style[1]
dataset/ETHPy150Open fmoralesc/vim-pad/pythonx/pad/modelines.py/format_modeline/operator `+` -> `-`