code: public com.google.appengine.v1.DiskUtilization getDiskUtilization() {
      return diskUtilization_ == null ? com.google.appengine.v1.DiskUtilization.getDefaultInstance() : diskUtilization_;
    }
docs: <pre>
  Target scaling by disk usage.
  </pre>
  
  <code>.google.appengine.v1.DiskUtilization disk_utilization = 11;</code>