Make Policy and Template APIs consistent wrt annotations

[cdisselkoen]

Category

User level API features/changes

Describe the feature you'd like to request

As noted in this TODO in the code

PolicySet has two methods annotation() and template_annotation() which are very similar except that one expects a policy ID and one expects a template ID. However, the former returns Option<&str> and the latter returns Option<String>. We should make this consistent; I think Option<&str> is better.

Describe alternatives you've considered

We could converge on Option<String> instead.

Additional context

No response

Is this something that you'd be interested in working on?

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change