[Go] Implement GetActualInstanceValue method

[Sander0542]

When you are using a oneOf type inside a path parameter, the value in the URL is set to the whole parameter object instead of the actual value.

I implemented a GetActualInstanceValue which returns the value of the object and a type assertion to check for the method. By doing it like this the path parameters will support oneOf parameters in the Go client.

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@antihax (2017/11) @grokify (2018/07) @kemokemo (2018/09) @jirikuncar (2021/01) @ph4r5h4d (2021/04) @lwj5 (2023/04)

Closes #14028

[wing328]

thanks for the PR

can you please PM me when you've time to further discuss this?

[Sander0542]

can you please PM me when you've time to further discuss this?

@wing328 I have time to discuss this in the coming 6 hours. Does that suit you?

[Sander0542]

@wing328 when do you have time to dicuss the changes?

[wing328]

what about coming week, say Tuesday? my timezone is +0800 (Hong Kong)

[Sander0542]

what about coming week, say Tuesday? my timezone is +0800 (Hong Kong)

Would have time in 1 hour? 19:00 your time zone.

[wing328]

yes, please PM me with a message to start with.

look forward to chatting with you

[Sander0542]

I sent you an email to your Gmail linked your GitHub profile

[wing328]

thanks for the PR, which has been merged