class Rufo::Formatter

def visit_string_interpolation(node)
  # [:string_embexpr, exps]
  consume_token :on_embexpr_beg
  skip_space_or_newline
  if current_token_kind == :on_tstring_content
    next_token
  end
  visit_exps(node[1], with_lines: false)
  skip_space_or_newline
  consume_token :on_embexpr_end
end