code: public void setRelationalDatabaseAvailabilityZones(java.util.Collection<AvailabilityZone> relationalDatabaseAvailabilityZones) {
          if (relationalDatabaseAvailabilityZones == null) {
              this.relationalDatabaseAvailabilityZones = null;
              return;
          }
  
          this.relationalDatabaseAvailabilityZones = new java.util.ArrayList<AvailabilityZone>(relationalDatabaseAvailabilityZones);
      }
docs: <p>
  The Availability Zones for databases. Follows the format <code>us-east-2a</code> (case-sensitive).
  </p>
  
  @param relationalDatabaseAvailabilityZones
  The Availability Zones for databases. Follows the format <code>us-east-2a</code> (case-sensitive).