v1.0.3

• enabled checks for never to avoid cases when a series of TS predicates narrows a type down to never which is a bug
• added lots of comments to the generated code
• optimized the special case when an array has only one type and it's an alias, before the fix Generator would create a no-op wrapper function, now it uses the external predicate directly
• fixed a rare but still possible root type vs nested type collision
• published the in-depth comparison article