code: public java.util.List<Category> getCategories() {
          if (categories == null) {
              categories = new com.amazonaws.internal.SdkInternalList<Category>();
          }
          return categories;
      }
docs: <p>
  A list of categories that describe the type of support issue a case describes. Categories consist of a category
  name and a category code. Category names and codes are passed to AWS Support when you call <a>CreateCase</a>.
  </p>
  
  @return A list of categories that describe the type of support issue a case describes. Categories consist of a
  category name and a category code. Category names and codes are passed to AWS Support when you call
  <a>CreateCase</a>.