code: public java.util.List<TrafficPolicyInstance> getTrafficPolicyInstances() {
          if (trafficPolicyInstances == null) {
              trafficPolicyInstances = new com.amazonaws.internal.SdkInternalList<TrafficPolicyInstance>();
          }
          return trafficPolicyInstances;
      }
docs: <p>
  A list that contains one <code>TrafficPolicyInstance</code> element for each traffic policy instance that matches
  the elements in the request.
  </p>
  
  @return A list that contains one <code>TrafficPolicyInstance</code> element for each traffic policy instance that
  matches the elements in the request.