code: public GetHealthCheckStatusResult withHealthCheckObservations(HealthCheckObservation... healthCheckObservations) {
          if (this.healthCheckObservations == null) {
              setHealthCheckObservations(new com.amazonaws.internal.SdkInternalList<HealthCheckObservation>(healthCheckObservations.length));
          }
          for (HealthCheckObservation ele : healthCheckObservations) {
              this.healthCheckObservations.add(ele);
          }
          return this;
      }
docs: <p>
  A list that contains one <code>HealthCheckObservation</code> element for each Amazon Route 53 health checker that
  is reporting a status about the health check endpoint.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setHealthCheckObservations(java.util.Collection)} or
  {@link #withHealthCheckObservations(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param healthCheckObservations
  A list that contains one <code>HealthCheckObservation</code> element for each Amazon Route 53 health
  checker that is reporting a status about the health check endpoint.
  @return Returns a reference to this object so that method calls can be chained together.