code: public ListPipelinesResult withPipelineSummaries(PipelineSummary... pipelineSummaries) {
          if (this.pipelineSummaries == null) {
              setPipelineSummaries(new java.util.ArrayList<PipelineSummary>(pipelineSummaries.length));
          }
          for (PipelineSummary ele : pipelineSummaries) {
              this.pipelineSummaries.add(ele);
          }
          return this;
      }
docs: <p>
  A list of "PipelineSummary" objects.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setPipelineSummaries(java.util.Collection)} or {@link #withPipelineSummaries(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param pipelineSummaries
  A list of "PipelineSummary" objects.
  @return Returns a reference to this object so that method calls can be chained together.