local function gather_results(success, ...)
  local n = select('#', ...)
  return success, { n = n, ... }
end

-- based on https://github.com/hoelzro/lua-repl

end
local function gather_results(success, ...)
  local n = select('#', ...)
  return success, { n = n, ... }

  -- print value of expression the way Lua 5.3 does it: by prepending 'return' to the line