docs: public java.util.List<RouteFilterPrefix> getRequestedAllowedPrefixesToDirectConnectGateway() {
          if (requestedAllowedPrefixesToDirectConnectGateway == null) {
              requestedAllowedPrefixesToDirectConnectGateway = new com.amazonaws.internal.SdkInternalList<RouteFilterPrefix>();
          }
          return requestedAllowedPrefixesToDirectConnectGateway;
      }