private @NotNull List<AnAction> getFilterActions() {
    List<AnAction> result = new ArrayList<>();
    for (Filter filter : myTreeModel.getFilters()) {
      result.add(new TreeActionWrapper(filter, this));
    }
    if (myTreeModel instanceof ProvidingTreeModel) {
      for (NodeProvider<?> provider : ((ProvidingTreeModel)myTreeModel).getNodeProviders()) {
        result.add(new TreeActionWrapper(provider, this));
      }
    }
    return result;
  }
private @NotNull List<AnAction> getFilterActions()