What is demonstrated by the code below?

// RawDao.kt

@Dao

interface RawDao {

@RawQuery

fun getUserViaQuery(query: SupportSQLiteQuery?): User?

}

// Usage of RawDao

...

val query =

SimpleSQLiteQuery("SELECT * FROM User WHERE id = ? LIMIT 1",

arrayOf(sortBy))

val user = rawDao.getUserViaQuery(query)

...