code: public java.util.List<IpRange> getIpv4Ranges() {
          if (ipv4Ranges == null) {
              ipv4Ranges = new com.amazonaws.internal.SdkInternalList<IpRange>();
          }
          return ipv4Ranges;
      }
docs: <p>
  The IPv4 ranges.
  </p>
  
  @return The IPv4 ranges.