feat: allow using WebClient APIs without argument

[davidlj95]

Summary

Suggest an implementation for #1769 by using void & union types

Introduced OptionalArgument for explicitness

Fixes #1769

To pay special attention:

• Breaking change in empty interface APIs
• Operation with no type test
• Add missing type test

Requirements (place an x in each [ ])

• [x] I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• [x] I've read and agree to the Code of Conduct.

[codecov[bot]]

Codecov Report

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

Project coverage is 81.62%. Comparing base (bb21de9) to head (f352c99). Report is 3 commits behind head on main.

:exclamation: Current head f352c99 differs from pull request most recent head f98f005

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Additional details and impacted files

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[davidlj95]

Hey this looks good to me and thank you for the PR!

One note about #1769 is that we'll want to add this to all methods that accept all optional arguments. Here's a brief search I did just based on the tests where the changes in this PR would apply:

Thanks! 😊 Oh nice then 💪 I just did a few as kind of a demo of what I'd look like. If looks good, will apply it around. Thanks for searching the places where changes are needed

btw I'm thinking about adding some utility like

type OptionalArgument<T> = T | void

So the intention is more explicit and can easily be refactored around in case we need to detect in which places args are optional

Would you be able to add the same changes to all of the above methods that support purely optional arguments?

Sure!