Run handwritten examples in veneer clients

[dbolduc]

The storage client has handwritten samples using placeholder values like "my-project", "my-bucket". Ideally we would run these things to make sure the formats are correct, and stay correct.

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Are we concerned about handwritten sample code that doesn't run?

We could maybe use #[doc(include = example.rs) for the sample body, and run the examples in our integration tests.

Also, this is a thing: https://doc.rust-lang.org/stable/rustdoc/scraped-examples.html

Originally posted by @dbolduc in https://github.com/googleapis/google-cloud-rust/pull/1927#discussion_r2063708321

[dbolduc]

It took me several iterations to get a create_bucket request to work.

https://github.com/googleapis/google-cloud-rust/blob/57a698a58b133d43c2746c25d4c343c5d95909f2/src/integration-tests/src/storage.rs#L47-L55

The result does not look much like our sample.

[coryan]

Can we close this? The examples are gone.