@NotNull
  @Override
  public Collection<? extends AbstractTreeNode<?>> getChildren() {
    for (RunDashboardCustomizer customizer : myCustomizers) {
      Collection<? extends AbstractTreeNode<?>> children = customizer.getChildren(this);
      if (children != null) {
        for (AbstractTreeNode<?> child : children) {
          child.setParent(this);
        }
        return children;
      }
    }
    return Collections.emptyList();
  }
@NotNull
  @Override
  public Collection<? extends AbstractTreeNode<?>> getChildren()