code: public NetworkInterface withIpv6Addresses(String... ipv6Addresses) {
          if (this.ipv6Addresses == null) {
              setIpv6Addresses(new java.util.ArrayList<String>(ipv6Addresses.length));
          }
          for (String ele : ipv6Addresses) {
              this.ipv6Addresses.add(ele);
          }
          return this;
      }
docs: <p>
  The IP addresses associated with the network interface.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setIpv6Addresses(java.util.Collection)} or {@link #withIpv6Addresses(java.util.Collection)} if you want
  to override the existing values.
  </p>
  
  @param ipv6Addresses
  The IP addresses associated with the network interface.
  @return Returns a reference to this object so that method calls can be chained together.