code: public GetRelationalDatabasesResult withRelationalDatabases(RelationalDatabase... relationalDatabases) {
          if (this.relationalDatabases == null) {
              setRelationalDatabases(new java.util.ArrayList<RelationalDatabase>(relationalDatabases.length));
          }
          for (RelationalDatabase ele : relationalDatabases) {
              this.relationalDatabases.add(ele);
          }
          return this;
      }
docs: <p>
  An object describing the result of your get relational databases request.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setRelationalDatabases(java.util.Collection)} or {@link #withRelationalDatabases(java.util.Collection)}
  if you want to override the existing values.
  </p>
  
  @param relationalDatabases
  An object describing the result of your get relational databases request.
  @return Returns a reference to this object so that method calls can be chained together.