code: public java.util.List<ReservedDBInstance> getReservedDBInstances() {
          if (reservedDBInstances == null) {
              reservedDBInstances = new com.amazonaws.internal.SdkInternalList<ReservedDBInstance>();
          }
          return reservedDBInstances;
      }
docs: <p>
  A list of reserved DB instances.
  </p>
  
  @return A list of reserved DB instances.