@NotNull
  @Override
  public Couple<@Nls String> getRepresentationName(@NotNull DataNode node) {
    if (node.getKey().equals(GradleSourceSetData.KEY)) {
      final GradleSourceSetData data = (GradleSourceSetData)node.getData();
      String comment = StringUtil.substringAfter(data.getExternalName(), ":");
      return Couple.of(GradleBundle.message("gradle.project.structure.source.set"), comment);
    }
    if (node.getKey().equals(ProjectKeys.MODULE)) {
      ModuleData moduleData = (ModuleData)node.getData();
      return Couple.of(moduleData.getExternalName(), null);
    }
    return super.getRepresentationName(node);
  }
@NotNull
  @Override
  public Couple<@Nls String> getRepresentationName(@NotNull DataNode node)