code: @Nonnull
    @ReturnsMutableCopy
    public ICommonsList <ICSSTopLevelRule> getAllRules (@Nonnull final Predicate <? super ICSSTopLevelRule> aFilter)
    {
      return m_aRules.getAll (aFilter);
    }
docs: Get a copy of all contained top-level rules. This method only considers
  top-level rules and not <code>@import</code> and <code>@namespace</code>
  rules!
  
  @param aFilter
  The predicate to be applied
  @return A copy of all contained top-level rules. Never <code>null</code>.