code: public final void addAllHelperTextColors(@NonNull final Collection<Integer> colors) {
          Condition.INSTANCE.ensureNotNull(colors, "The collection may not be null");
  
          for (int color : colors) {
              addHelperTextColor(color);
          }
      }
docs: Adds all helper text colors, which are contained by a specific collection.
  
  @param colors
  A collection, which contains the colors, which should be added, as an instance of the
  type {@link Collection} or an empty collection, if no colors should be added