DEV: add TCEs to HDEL command page

[dwdougherty]

All tests were run locally and passed. The predis example is a bit different than the others: it has setup and teardown methods, and some different imports, etc.

I added the full suite of existing hash tests to the lettuce-async and lettuce-reactive examples.

No rust examples yet.

[github-actions]

Staging links:
https://redis.io/docs/staging/DOC-5632/commands/hdel/

[github-actions]

DOC-5632

[cmilesb]

Approving because the code examples are there and look good, but I did notice that the copy and view examples buttons cover the language selection in some cases. Probably not something to fix as part of this, though.

[dwdougherty]

Approving because the code examples are there and look good, but I did notice that the copy and view examples buttons cover the language selection in some cases. Probably not something to fix as part of this, though.

Thank you for the review, @cmilesb! Andy and I have started a discussion about the tabs. Andy just added two more tab types (rust-sync and rust-async), so the example panes are going to be even more weird and squished when we start adding those examples. 😧

[andy-stark-redis]

Aside from the PHP thing (easily fixed), this basically LGTM. It will need testing, but probably makes sense to wait until you've added all your planned changes to this file before running tests and submitting PRs to the client repos.

Very impressive that you've got the full set of languages in place right from the start :-)

[dwdougherty]

Thanks, @andy-stark-redis! BTW, I did test everything locally. Augment helped me get everything set up on my MacBook so I can test all new examples going forward.