Conditional Requirements

[jaredoconnell]

Please describe what you would like to see in this project

It would be useful in some situations to have annotations specify if a field is required if another field matches a specific value or set of values. This would, for example, allow setting a timeout value if wait is set to true.

Please describe your use case

I have a wait field that has a matching timeout field. The timeout does nothing when wait is false, so defining this relationship in the typing would be beneficial.

I would make it an required_if_true annotation, that's probably the easiest way to make this happen. Ideally, we'd also have a required_if_false.