Add "raises <exception type>" to docstrings

[joein]

[Jai-Dhiman]

Hey, I'd love to contribute to the project, I'm a first time open-source contributer, is this still an issue?

[Muhammad-Danyal353]

@joein
Hello there, I am working on this issue: adding "raises " to docstrings.

[Muhammad-Danyal353]

@joein Opened a PR for this issue: #1185
This update adds explicit Raises sections to sync and async client docstrings to document expected exceptions. Feedback is welcome.