Package-level declarations

// Create specific migration class, example upgrade version 2 to 3
class Migration23 : KQLiteMigration(2, 3) {  
    // Migrations executes in EXCLUSIVE transaction by default
    override fun migrate(database: KQLiteDatabase) {  
        val schema = database.schema() 
        schema.alterTable(TblPeople).addColumn(TblPeople.nationality)  
    }  
}
// Below override inside KQLiteDatabase class
override fun getKQLiteMigrations(): List<KQLiteMigration>? {  
    return listOf(
        Migration23()  
    )  
}