if (version == null) {
            throw new GradleException("There is currently no version information available for '" + placeHolder + "'.");
        }
        return version;
    }

    static boolean isPlaceHolder(String version) {
        return DefaultWrapperVersionsResources.PLACE_HOLDERS.contains(version);
    }

    GradleVersion getGradleVersion() {
        if (gradleVersion == null) {

  // Validate GraphDef is what we expect.
  bool found_placeholder = false;
  bool found_scalar_const = false;
  bool found_add = false;
  for (const auto& n : graph_def.node()) {
    if (IsPlaceholder(n)) {
      EXPECT_FALSE(found_placeholder);
      found_placeholder = true;
    } else if (IsScalarConst(n, 3)) {
      EXPECT_FALSE(found_scalar_const);
      found_scalar_const = true;

keyToIdx[inst.__key__]=i;if(!inst.isPlaceholder){inst.__setProperty(this.indexAs,i,true);}}