code: public java.util.List<DBParameterGroupStatus> getDBParameterGroups() {
          if (dBParameterGroups == null) {
              dBParameterGroups = new com.amazonaws.internal.SdkInternalList<DBParameterGroupStatus>();
          }
          return dBParameterGroups;
      }
docs: <p>
  Provides the list of DB parameter groups applied to this DB instance.
  </p>
  
  @return Provides the list of DB parameter groups applied to this DB instance.