Why are parser and formatter operator hidden in Malhar/contrib/schema

[Chandni Singh]

Hi,

I just came across couple of formatter and parser operators which are under
Malhar/contrib/schema.

I have couple of questions:
1. What does schema denote here?
2. Why formatter/parser which are functions are placed under schema package?
2. Why are all these operator under Malhar/contrib and not Malhar/lib

Thanks,
Chandni