[AIT-295] Update Swift API references docs for protocol v5 changes

[maratal]

Description

Updates similar to #3134 re API reference. Examples were added in the previous PR.

Checklist

• Commits have been rebased.
• Linting has been run against the changed file(s).
• The PR adheres to the writing style guide and contribution guide.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch AIT-295-update-api-refs-for-swift

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