code: public Cluster withHsms(Hsm... hsms) {
          if (this.hsms == null) {
              setHsms(new java.util.ArrayList<Hsm>(hsms.length));
          }
          for (Hsm ele : hsms) {
              this.hsms.add(ele);
          }
          return this;
      }
docs: <p>
  Contains information about the HSMs in the cluster.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setHsms(java.util.Collection)} or {@link #withHsms(java.util.Collection)} if you want to override the
  existing values.
  </p>
  
  @param hsms
  Contains information about the HSMs in the cluster.
  @return Returns a reference to this object so that method calls can be chained together.