code: public AliasRoutingConfiguration withAdditionalVersionWeights(java.util.Map<String, Double> additionalVersionWeights) {
          setAdditionalVersionWeights(additionalVersionWeights);
          return this;
      }
docs: <p>
  The name of the second alias, and the percentage of traffic that's routed to it.
  </p>
  
  @param additionalVersionWeights
  The name of the second alias, and the percentage of traffic that's routed to it.
  @return Returns a reference to this object so that method calls can be chained together.