code: public void setHealthCheckObservations(java.util.Collection<HealthCheckObservation> healthCheckObservations) {
          if (healthCheckObservations == null) {
              this.healthCheckObservations = null;
              return;
          }
  
          this.healthCheckObservations = new com.amazonaws.internal.SdkInternalList<HealthCheckObservation>(healthCheckObservations);
      }
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>
  
  @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.