Android Room Database Transaction

val db: AppDatabase = Room.databaseBuilder(app, AppDatabase::class.java, "MyDb.db")        .build()db.runInTransaction {    item.updateImage(imageDataSource)    dataSource.update(item)}

interface BaseDao<T> {    @Insert(onConflict = OnConflictStrategy.REPLACE)    fun insert(entity: T) : Long    @Insert(onConflict = OnConflictStrategy.REPLACE)    fun insertAll(vararg entity: T)    @Update    fun update(entity: T)    @Update    fun updateAll(vararg entity: T)    @Delete    fun delete(entity: T)}@Daointerface PinDao : BaseDao<Pin> {    @Transaction    public void replacePin(newPin: Pin, oldPin: Pin) {         insert(newPin)         delete(oldPin)    }}