Akash Gaonkar

Code significantly lacks comments, so we definitely shouldn't merge into master yet.

Paper radio button names that evaluate to false can be deselected without allow-empty-selection

1

### Description Paper radio button names that evaluate to false can be deselected without allow-empty-selection This becomes significant when the name is bound to index in a template dom-repeat. ###...

And of isinstances / typeguards containing unions

2

**Bug Report** When taking the `and` of multiple isinstances/typeguards, it seems like only the most recent is used to constrain the variable whose type is being checked. **To Reproduce** See...