fn lifecycle_driver_migration_warning(
package_name: &str,
explicit_driver_contract: Option<&str>,
) -> Option<String>Expand description
Return the migration warning emitted by rbnx start for a non-shared
Driver declaration. Runtime registration later proves whether it is the
provider’s exact namespace legacy contract before accepting it.
The warning lives in rbnx, rather than in a language SDK, so native and
non-Python providers receive the same guidance. Legacy contracts remain
exact namespace legacy contracts remain supported; the warning only
describes the incremental migration.