The following example shows how to wrap your code change in a flag.

  if (Flags.myNewFlag()) {
    // execute untested code
  } else {
    // continue as though untested code isn't present
  }

In the previous example, the aconfig tool has generated a method called mynewFlag, which is used to check the value of the flag. If true, your new code is run. If false, flow continues as normal.