{
    "input": [
  ${repeat:vt.request_length:
        {
            "policy-instance-name": ${vt.request[${1}].policy-instance-name},
            "vlan-type":  ${vt.request[${1}].vlan-type},
            "vlan-tag-key": ${vt.request[${1}].vlan-tag-key}
        },
  }
    ]
}