code: public com.google.appengine.v1.Version getVersion() {
      return version_ == null ? com.google.appengine.v1.Version.getDefaultInstance() : version_;
    }
docs: <pre>
  A Version containing the updated resource. Only fields set in the field
  mask will be updated.
  </pre>
  
  <code>.google.appengine.v1.Version version = 2;</code>