the requirement is unclear. rewording is needed

Proposed Change

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.. req::
:id: R-30278
:target: VNF or PNF
:keyword: SHOULD

The VNF or PNF provider *SHOULD* provide a Resource/Device YANG model
as a foundation for creating the YANG model for configuration. This will
include VNF or PNF attributes/parameters and valid values/attributes configurable
by policy.

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