[NiceToHave]: Interface IApiResponse<out T> misses [MemberNotNullWhen(true, nameof(Content))] attribute

[sguryev]

Describe the bug 🐞

Analyzer shows the warming for the IApiResponse<out T>.Content property after checking IsSuccessStatusCode.

Step to reproduce

1. Return IApiResponse<T> from the method.
2. Call the method
3. Check the response IsSuccessStatusCode == true
4. See the error\warning

Reproduction repository

https://github.com/reactiveui/refit

Expected behavior

Analyzer should consider Content as not null after checking IsSuccessStatusCode for true

Screenshots 🖼️

IDE

No response

Operating system

Windows

Version

11

Device

No response

Refit Version

7.0.0

Additional information ℹ️

No response

[github-actions]

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