hasNumberOfDistinctValues and hasHistogramValues require arguments that should be optional?

**Describe the bug**
The docs and Scala code for `hasNumberOfDistinctValues` and `hasHistogramValues` indicate that providing the `binningUdf, maxBins` parameters should be optional, but from the function definitions they seem to be required.

**To Reproduce**
Steps to reproduce the behavior:
1. Try to define a check with `check.hasNumberOfDistinctValues('column_name', lambda x: x == 6)`
2. See error: TypeError: hasNumberOfDistinctValues() missing 2 required positional arguments: 'binningUdf' and 'maxBins'

**Expected behavior**
I'd like to be able to call the hasNumberOfDistinctValues and hasHistogramValues without specifying a binning function and maxBins.