class Rufo::Formatter

def visit_mlhs_paren(node)
  # [:mlhs_paren,
  #   [[:mlhs_paren, [:@ident, "x", [1, 12]]]]
  # ]
  _, args = node
  # For some reason there's nested :mlhs_paren for
  # a single parentheses. It seems when there's
  # a nested array we need parens, otherwise we
  # just output whatever's inside `args`.
  if args.is_a?(Array) && args[0].is_a?(Array)
    check :on_lparen
    write "("
    next_token
    skip_space_or_newline
    indent(@column) do
      visit_comma_separated_list args
    end
    check :on_rparen
    write ")"
    next_token
  else
    visit args
  end
end