Use case for functions exposed by wasp/server/operations
When you define an operation in
main.wasp, the framework compiles and creates 2 exports of the same name. One from wasp/client/operations and one from wasp/server/operations. Of couse you would invoke the operation from wasp/client/operations to on the frontend. I'm wondering: what is the use case for the function exported from wasp/server/operations?