Question: use Option type from as-container instead of Nullable type that we are using currently

[Niraj-Kamdar]

Benefits:

• thoroughly tested code
• rust-inspired
• supports any type to be wrapped in this container primitive unlike our Nullable that just allows the base type to be nullable.
• Similar exp to the Result type since from the same package.

Checkout : https://github.com/yjhmelody/as-container for more info

[dOrgJelli]

Yes I agree with this change.

I did not make this change in the initial PR because it was "out of scope", but forgot to make an issue for this :P thank you so much for catching this!