code: public LoadBalancerDescription withBackendServerDescriptions(BackendServerDescription... backendServerDescriptions) {
          if (this.backendServerDescriptions == null) {
              setBackendServerDescriptions(new com.amazonaws.internal.SdkInternalList<BackendServerDescription>(backendServerDescriptions.length));
          }
          for (BackendServerDescription ele : backendServerDescriptions) {
              this.backendServerDescriptions.add(ele);
          }
          return this;
      }
docs: <p>
  Information about your EC2 instances.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setBackendServerDescriptions(java.util.Collection)} or
  {@link #withBackendServerDescriptions(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param backendServerDescriptions
  Information about your EC2 instances.
  @return Returns a reference to this object so that method calls can be chained together.