Is the generator part of the prisma schema file needed for WG prisma datasource?

for PRISMA data source, we found that omitting the generator has no impact on the WG functionality.

generator client {
    provider = "prisma-client-js"

  • Is this needed?
  • Does WG using specific version of Prisma or it is WG interpretation of Prisma schema?
  • Which version of Prisma client is being used? We see loading PRISMA as loading the WG SDK, but prisma is missing from package.json file.