not specified or empty, defaults to ["Tunnel", "Workload"] for back-compatibility
                items:
                  type: string
                type: array
              blockSize:
                description: The block size to use for IP address assignments from
                  this pool. Defaults to 26 for IPv4 and 122 for IPv6.
                type: integer
              cidr:

	polar Point                   // polar and Point denote different types
)

type TreeNode struct {
	left, right *TreeNode
	value any
}

type Block interface {
	BlockSize() int
	Encrypt(src, dst []byte)
	Decrypt(src, dst []byte)
}
</pre>

<p>
A defined type may have <a href="#Method_declarations">methods</a> associated with it.

	Seq_num             uint64
	Ts_first_pkt        TpacketBDTS
	Ts_last_pkt         TpacketBDTS
}

type TpacketReq struct {
	Block_size uint32
	Block_nr   uint32
	Frame_size uint32
	Frame_nr   uint32
}

type TpacketReq3 struct {
	Block_size       uint32
	Block_nr         uint32
	Frame_size       uint32
	Frame_nr         uint32
	Retire_blk_tov   uint32
	Sizeof_priv      uint32