TestScheduler cold() values and errors parameters are type any #3921
Description
Bug Report
Current Behavior
Using the TestScheduler for the first time, I don't understand what these parameters accept. The documentation doesn't mention it either: https://github.com/ReactiveX/rxjs/blob/master/doc/marble-testing.md#api
What are they?
Expected behavior
I expect them to have a type declaration
Environment
- RxJS version: 6.2.2