Should gts fix or gts check find unused variables?

[nolanmar511]

I had the following test case where durationMillis is unused. If I run gts fix or gts check I don't get any output.
Should this problem be caught?

it('should throw error when disabled', async () => {
      const durationMillis = 10 * 1000;
      const intervalBytes = 1024 * 512;
      const stackDepth = 32;
      const profiler = new HeapProfiler(intervalBytes, stackDepth);
      profiler.disable();
      try {
        const profile = await profiler.profile();
        assert.fail('Expected error to be thrown.');
      } catch (err) {
        assert.equal(err.message, 'Heap profiler is not enabled.');
      }
    });

[ofrobots]

I believe this is already fixed by #62 and released as version 0.4.1. I think you need to pick up the latest version of gts which would be facilitated by googleapis/cloud-profiler-nodejs#26.