def _Exists(self):
    """Returns true if the disk exists."""
    cmd = util.GcloudCommand(self, 'compute', 'disks', 'describe', self.name)
    stdout, _, _ = cmd.Issue(suppress_warning=True)
    try:
      json.loads(stdout)
    except __HOLE__:
      return False
    return True
dataset/ETHPy150Open GoogleCloudPlatform/PerfKitBenchmarker/perfkitbenchmarker/providers/gcp/gce_disk.py/GceDisk._Exists