code: public final List<String> globalSecondaryIndexNames(final KeyType keyType) {
          if (properties.globalSecondaryIndexNames().containsKey(keyType)) {
              return properties.globalSecondaryIndexNames().get(keyType);
          }
          return Collections.emptyList();
      }
docs: Gets the global secondary indexes.
  @param keyType The key type.
  @return The list of global secondary indexes.