code: public UnassignIpv6AddressesResult withUnassignedIpv6Addresses(String... unassignedIpv6Addresses) {
          if (this.unassignedIpv6Addresses == null) {
              setUnassignedIpv6Addresses(new com.amazonaws.internal.SdkInternalList<String>(unassignedIpv6Addresses.length));
          }
          for (String ele : unassignedIpv6Addresses) {
              this.unassignedIpv6Addresses.add(ele);
          }
          return this;
      }
docs: <p>
  The IPv6 addresses that have been unassigned from the network interface.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setUnassignedIpv6Addresses(java.util.Collection)} or
  {@link #withUnassignedIpv6Addresses(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param unassignedIpv6Addresses
  The IPv6 addresses that have been unassigned from the network interface.
  @return Returns a reference to this object so that method calls can be chained together.