[Docs] MessagePack IDL, Pydantic Support, and Attribute Access

[Future-Outlier]

Docs link

• dataclass: https://flyte--6022.org.readthedocs.build/en/6022/user_guide/data_types_and_io/dataclass.html
• pydantic basemodel: https://flyte--6022.org.readthedocs.build/en/6022/user_guide/data_types_and_io/pydantic_basemodel.html
• attribute access: https://flyte--6022.org.readthedocs.build/en/6022/user_guide/data_types_and_io/accessing_attributes.html

Tracking issue

https://github.com/flyteorg/flyte/issues/5318

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 37.07%. Comparing base (d1a723e) to head (4515e31). Report is 13 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #6022 +/- ## ========================================== + Coverage 37.03% 37.07% +0.04% ========================================== Files 1313 1316 +3 Lines 131622 132191 +569 ========================================== + Hits 48742 49007 +265 - Misses 78652 78922 +270 - Partials 4228 4262 +34 ``` | [Flag](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | Coverage Δ | | |---|---|---| | [unittests-datacatalog](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | `51.58% <ø> (ø)` | | | [unittests-flyteadmin](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | `54.10% <ø> (+0.02%)` | :arrow_up: | | [unittests-flytecopilot](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | `22.23% <ø> (ø)` | | | [unittests-flytectl](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | `62.46% <ø> (ø)` | | | [unittests-flyteidl](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | `7.25% <ø> (ø)` | | | [unittests-flyteplugins](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | `53.72% <ø> (+0.03%)` | :arrow_up: | | [unittests-flytepropeller](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | `42.65% <ø> (-0.47%)` | :arrow_down: | | [unittests-flytestdlib](https://app.codecov.io/gh/flyteorg/flyte/pull/6022/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg) | `57.59% <ø> (+2.42%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=flyteorg#carryforward-flags-in-the-pull-request-comment) to find out more.

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[davidmirror-ops]

@Future-Outlier left some suggestions to improve clarity. I hope it helps

[Future-Outlier]

@Future-Outlier left some suggestions to improve clarity. I hope it helps

thank you so much David, will finish this today

[davidmirror-ops]

@Future-Outlier thank you for your patience. A few more suggestions, plus please make sure there are no nested important blocks.