code: public void setDestinations(java.util.Collection<String> destinations) {
          if (destinations == null) {
              this.destinations = null;
              return;
          }
  
          this.destinations = new com.amazonaws.internal.SdkInternalList<String>(destinations);
      }
docs: <p>
  A list of destinations for the message, consisting of To:, CC:, and BCC: addresses.
  </p>
  
  @param destinations
  A list of destinations for the message, consisting of To:, CC:, and BCC: addresses.