code: public static <T extends TOP> boolean hasAny(final Class<T> type, final JCas aJCas)
      {
          return count(type, aJCas) != 0;
      }
docs: Returns whether there is any feature structure of the given type
  
  @param type  the type
  @param aJCas the JCas
  @return whether there is any feature structure of the given type