void AddCategory(GraphData graphData)
{
AssertHelpers.IsNotNull(graphData, "GraphData is null while carrying out AddCategoryAction");
graphData.owner.RegisterCompleteObjectUndo("Add Category");
// If categoryDataReference is not null, directly add it to graphData
if (categoryDataReference == null)
{
categoryDataReference = new CategoryData(categoryName, childObjects);
}
graphData.AddCategory(categoryDataReference);
}
