code: public Edge withResponseTimeHistogram(HistogramEntry... responseTimeHistogram) {
          if (this.responseTimeHistogram == null) {
              setResponseTimeHistogram(new java.util.ArrayList<HistogramEntry>(responseTimeHistogram.length));
          }
          for (HistogramEntry ele : responseTimeHistogram) {
              this.responseTimeHistogram.add(ele);
          }
          return this;
      }
docs: <p>
  A histogram that maps the spread of client response times on an edge.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setResponseTimeHistogram(java.util.Collection)} or
  {@link #withResponseTimeHistogram(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param responseTimeHistogram
  A histogram that maps the spread of client response times on an edge.
  @return Returns a reference to this object so that method calls can be chained together.