class Rufo::Formatter

def visit_args_add_star(node)
  # [:args_add_star, args, star, post_args]
  _, args, star, *post_args = node
  if !args.empty? && args[0] == :args_add_star
    # arg1, ..., *star
    visit args
  else
    visit_comma_separated_list args
  end
  skip_space
  write_params_comma if comma?
  consume_op "*"
  skip_space_or_newline
  visit star
  if post_args && !post_args.empty?
    write_params_comma
    visit_comma_separated_list post_args
  end
end