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