fix: Fix type for NAT subnetwork attributes

[peikk0]

• fix type for NAT subnetwork attributes
• remove unnecessary lookup() calls with optional attributes

Fixes #84

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[imrannayer]

@peikk0 thanks for the PR. few change requested

[imrannayer]

/gcbrun

[imrannayer]

@peikk0 can you plz follow contribution guide to fix issues with lint test.

Thanks

[peikk0]

@imrannayer I've fixed the doc linting issue. I was certain I already did it the time before. 🙈

[imrannayer]

/gcbrun

[imrannayer]

@peikk0 thx for fixing the issue. If you are getting error with type list then you can switch it to set. Also can you add a subnet and use that subnet in nats block in this example. This will help us with testing this part of code.

Thanks

[ebeltramo96]

any update? we cannot merge the update for the same reason

[peikk0]

@imrannayer I've updated the NAT example, it applies cleanly for me.

[imrannayer]

/gcbrun

[imrannayer]

/gcbrun