Improve the error message when a required field from the API is not provided

[bugraoz93]

Use pydantic is_required() and ask users to fill in before sending requests or building it. Auto-generate appropriate messages Combine with #57634 if possible

[Prab-27]

@bugraoz93 , Could you please assign this to me? I’ll raise a PR in a couple of days

[potiuk]

Assigned