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If the payload contains pnf-flag and it is set to true then that indicates request for PNF.
If it is set to false, then the request is for VNF, and we will use vnf-id in input and nf-naming-code in payload.
nf-naming-code = vgw for example.
SDNC will look up nf-naming-code in AAI if not passed in payload.
For PNF, we will still use vnf-id input and the following in payload: pnf-name and ipaddress-v4-oam
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